We recently caught up with celeb trainer extraordinaire Amy Rosoff Davis — the mastermind behind Selena Gomez’s fitness routine (particularly during her Revival tour). As one of the fitness geniuses behind some of Hollywood’s strongest women, we had one very important question to ask Amy: what’s your go-to ab move?

“You can’t go wrong with a plank,” Amy told OurStyle. “There are so many different plank moves — mountain climbers, pikes, single-leg, elbows to hands . . . there are tons of variations!” And the best part about planks is that they don’t just give you lean, ripped abs. “If you get your form right, they work the entire body,” she said.

Ahead are over 30 incredible body-torchin’, ab-sculpting moves that’ll have you feeling strong, powerful, and confident.

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