By Marc Inocencio

Emma Stone dropped by the Tonight Show Starring Jimmy Fallon on Monday when the late-night funny man challenged her to an epic lip-sync battle.

“We’ll take turns lip-syncing sections of well-known songs, each one of us trying to lip-sync better than the other person,” Jimmy explained. “We don’t know which songs the other ones picked. Only the performer knows which song is coming next.”

Lip-syncing two songs each, the 39-year-old host started the competition on a sassy note by performing an interpretive dance number to Iggy Azalea‘s single, “Fancy.” Emma — donning a black dress — followed up the fierce act by faux-singing the tongue-twister lyrics to Blues Traveler‘s “Hook.”

In the final round, Jimmy took on the Styx‘s “Mr. Roboto,” while the Crazy, Stupid, Love. actress channeled her inner angry rapper for DJ Khaled‘s “All I Do Is Win.”

Emma’s newest film The Amazing Spider-Man 2 — which also stars her on- and off-screen boyfriend Andrew Garfield — hits theaters on Friday.

Who do you think won the lip-sync battle?