Sean Mars-Owner

Sean started as a co-ed Carroll College Cheerleader and then was on an open co-ed cheer squad.  Sean has coached high school cheerleading for over 8 years.  He has attended High School Nationals for 7 years and his teams have won state championships.  He also has coached for 3 years at the middle school level.  Sean has also created competition routine music for local cheer, pom and all-star dance teams since 2003.

Sean started coaching at Heat Athletics in 2011 with their level 5 team.  Sean fell in love with All-Star Cheerleading so he purchased Heat Athletics All-Stars in 2013. Sean is AACA safety certified, AED, CPR, Heatstroke and concussion certified, Special Needs Team coaching certified, a USASF credentialer of levels 1-5, a Midwest board member of the USASF and is US All Star Federation credentialed Levels 1-5 for Tumbling, Stunts and Basket Tosses.


Brandi Mars-Owner

Brandi is new to the Heat Athletics family, but not new to cheerleading.  She has coached grade school through competitive high school cheerleading since 1995.  Her varsity team attended the UCA National High School Cheerleading Championships every year she coached and won numerous state and local titles. She also helped establish and coach youth through senior teams with another local all-star program.  Brandi received her Bachelor of Science in Elementary Education with a minor in early childhood from Carroll College and has been in the teaching field for over 18 years.  She is married to Sean and has two wonderful children Brandon and Molly.

Alisha Gretenhardt – General Manager, All Star Coach, Class & Camp Coach

Alisha cheered for Oak Creek High School sideline & competitive cheer programs all 4 years of high school. In addition to regional & state championships, Oak Creek High School cheer squad attended the UCA National competition in Orlando, FL all 4 years. Alisha was also a member of the 4-girl Stunt competition at UCA Nationals. In addition to her high school program, Alisha was a member of the Wisconsin All Star team competing & traveling throughout the Midwest, Australia & Hawaii. In addition to her cheer experience, Alisha has coached All Star Cheer since 2009 and owned an prior to moving to Wisconsin, owned an All Star Cheer facility in Minnesota for the past 5 years.  Her All Star Cheer teams have won multiple National Championships, as well as 2 Silver Medal finishes at the International All Star Championships in Orlando, Florida. Outside of team coaching Alisha has choreographed for programs in Minnesota & Wisconsin. She is also actively involved in judging cheerleading competitions throughout the Midwest. As a judge, she specializes in both building & tumbling technique.


Sarah Luna – All Star Coach, Class & Camp Coach

Sarah started her cheerleading career at Oak Creek East Middle School for three years and was captain her final 8th grade year. She did competitive cheerleading at Oak Creek High School for two years and was captain. Sarah joined Heat for her last two years of high school and was apart of Heat Athletics Firestorm for two years. She was elected captain her senior year. She competed at the Cheerleading Worlds both years and was a part of the 8th place finishing team in 2012. At the season banquet she received the Team Leadership Award for 2011 and 2012.

Sarah has been coaching for three years (levels 2-4) and is USASF credentialed for levels 1-5 in stunts, baskets, and tumbling. Sarah is also CPR and First Aid certified. Sarah is currently studying to become a Registered Nurse at Alverno College.

Angela Giorgini- All Star Coach

Stephanie Beaudoin- All Star Coach, Class Coach, Administrative Front Desk Staff

Beth Brester – Special Athlete Coach

Beth is a lifelong Pewaukee resident and graduate of Pewaukee HS. She attended UW Stout. She was lucky enough to have been hired to coach cheerleading at her alma mater for the past 15 years. She retired from that position in May and has been taking judges training classes. 3 years ago PHS was able to start the Sparkle Crew cheer team and she was honored to work with those athletes.  During the day she is a Certified ParaOptometic Tech in Hartland. In her free time she and her husband enjoy traveling, visiting our 4 adult children and she tries to attend as many Brewers games as possible.

Alex Dejno- Tumbling Coach

Alex has been coaching acrobatics for 10 years. He has coached gymnastics, allstar cheerleading highschool cheer, dance, martial arts tricking, diving and ninja/parkour. He was a head coach for Kettle Moraine gymnastics for 4 years and a head tumbling coach to many programs across the state through a contracted tumbling company.

He has traveled in and out of state to run tumbling clinics for allstar and dance programs. He believes in teaching safe tumbling where strength, flexibility and knowledge of the skill are all equally important to build a confident and consistent future with his athletes. He prides himself on his communication with athletes and to teach them the fundamentals of fear management and confidence building.

Alex is opening his schedule for privates and he will be working with tumbling classes levels 1-5.


Lauren Leonardi – All Star Junior Coach Ignite

Lauren is going into her senior year at Hamilton High School and her 7th season as an athlete at Heat Athletics!  She has been a part of the Junior 2, Senior 3,  Junior 4 and Senior 4 teams throughout her years at Heat.  Aside from all-star cheer Lauren also was part of her middle school cheer team for 2 years.  Lauren is very excited to turn her love for cheer over to our younger athletes!


Abby Ignatowski – All Star Junior Coach Embers, Junior Class & Camp Staff

Abby is a junior at Arrowhead High School and has been cheering with Heat Athletics for three years.  Prior to competing with Heat Athletics, she cheer at All That Cheer in Round Rock, Texas for 4 years.  Abby has competed at levels 1-4, and is currently going for a Summit Bid with her level 4 team, Firebolt.  Abby has 4 younger sisters, giving her much experience with children, also creating her love for working with and coaching children.  Currently she is a Sparklers helper, and teaches tiny/mini classes.  Abby is excited to share her love of cheerleading with younger athletes as she continues to cheer at Heat Athletics!


Jessica Mysliwski – All Star Junior Coach Embers, Junior Class Staff

Jessica is a senior at Hamilton High School where she is at the top of her class.  She has been an athlete at Heat Athletics since 2012 where she has competed on levels 1-4.  Before cheerleading, Jessica was a gymnast at LeFleur’s Gymnastics for 7 years, and M&M Gymnastics for 2 years.  Jessica absolutely loves helping out with the special needs teams, Sparklers!  They remind her how fun all-star cheerleading is.  Also, Jessica coaches the Tiny/Mini Tumbling, Parks and Rec Tumbling and Cheer 101 classes.  She has a great time teaching skills to the young tumblers and cheerleaders!


Jennifer Ignatowski – Administrative Front Desk Staff, Birthday Party Scheduling

This is the third competition season at Heat Athletics for the Ignatowski family. Jennifer’s two daughters, Abby and Katie, discovered their love for All-Star Cheer seven years ago, when they lived in Texas prior to relocating to Wisconsin. They are on Lightning, the Junior Level 4 team this year.

Jennifer has been married to her husband, Troy, since 1999 and they have five daughters – Abby, Katie, Sophie, Molly, and Jane. They spend their time driving to and from cheer, soccer, basketball, and softball practices and enthusiastically encouraging their children during games and competitions.

She taught second grade for ten years before “retiring” to spend more time with her family.