Warner Bros.

They are definitely far from the shallow now.

Helped in part by a sultry performance at the Oscars, Lady Gaga and Bradley Cooper's award-winning song "Shallow" from "A Star Is Born" surged to No. 1 on the Billboard Hot 100.

It rose from the 21st spot; in October, the song previously peaked at No. 5.

"Shallow" won the Oscar for Best Original Song, the latest trophy in a haul that includes a Grammy and Golden Globe.

This marks Gaga's fourth Hot 100 No. 1 and, of course, Cooper's first. The actor made his directorial debut with the movie, but also stunned audiences with his musical ability. With this No. 1 hit, he now can boast a feat that many big-name music stars have yet to achieve— including Bruce Springsteen, James Brown, the Backstreet Boys, and One Direction.

After "Shallow's" Oscar win, Warner Bros. re-released "A Star Is Born" into theaters with additional footage.