Maria Menounos sure knows the meaning of shape.

The in-shape TV personality celebrated her big deal Shape Magazine cover at the Chapstick Beach House in Malibu this past Saturday with a fitness-filled day of Yoga, beach tennis, swimming and even played DJ by preparing her own playlist.

The beach bash included her film producer boyfriend, Kevin Undergaro, Terrell Owens (pictured with Maria), Derek Hough, Lisa Rinna with sexy hubby Harry Hamlin and their two daughters, Katherine Bailess (One Tree Hill), George Kotsiopoulos (Fashion Police), and Stacy Keibler ex-boyfriend Geoff Stults (The Finder).

Jennifer Aniston’s Yoga friend and trainer Mandy Ingber, author and creator of yoga-hybrid Yogalosophy taught Maria and guests stretching exercises and took them through a 20 minute yoga routine.

Zico Coconut Water kept all hydrated and Chapstick Sports Ready with SPF protection made sure everyone’s lips were protected in the sun.

Nice.