Steal the show
Definition 1 of 1
Pro Tip 1/3Spotlight Moment
Used when someone unexpectedly dominates an occasion, capturing all the attention. 
The shy student gave such an inspiring speech that she stole the show at graduation.
Pro Tip 2/3Figurative Expression
It's a metaphor: nobody actually 'steals' anything; it means one outperformed others. 
The magician didn’t just entertain the crowd; he stole the show with his final trick.
Pro Tip 3/3Positive Connotation
It's often used to praise someone for their standout performance. 
Despite the strong cast, the child actress stole the show with her natural acting.