Imagine all the people ... not remembering the Beatles. Except for one guy, who's about to become a superstar thanks to their music.

That's the premise of Danny Boyle's upcoming musical dramedy, "Yesterday." As the trailer lays out, Jack (Himesh Patel) is an struggling singer-songwriter who wakes up after an accident to discover the Beatles never existed.

But he remembers all of their hit songs and starts to pass them off as his own. But Jack's skyrocketing fame threatens his friendship with the person who always believed in him, Ellie (Lily James).

The script comes from Richard Curtis ("Love, Actually"). Boyle, meanwhile, took on this project after exiting "Bond 25."

Judging by the trailer, the movie looks like a fun, funny, fizzy combination of Boyle's "Slumdog Millionaire" and Curtis' numerous romantic comedies, with Beatles music thrown in for good measure. This could be the sleeper hit of the summer.

"Yesterday" opens in theaters June 25.