ET is giving away a pair of tickets and soundcheck passes to the U.S. city of your choice.
One Direction went on hiatus in early 2016, but most of the band has remained on good terms.
The "There's Nothing Holding Me Back" singer is currently in the studio working on his third album.
The 'Late Late Show' host brought all the laughs when he stepped in for the singer's backup dancer at KIIS FM Jingle Ball in Los Angeles and saved the day.
He also provided security for Ed Sheeran and massaged Niall Horan.
The former bandmates are clearly still close.
The former One Direction heartthrob chatted with ET at KIIS FM's iHeart Radio Jingle Ball 2017.
ET caught up with the former 1D singer at the 2017 American Music Awards on Sunday, Nov. 19 in Los Angeles.
Find out how the A-listers are living it up this week!
The 23-year-old singer was grabbed aggressively onstage during the We Can Survive concert on Saturday.
The former One Direction heartthrob got more than he bargained for during his 'Ellen' interview
The 25-year-old singer opened up about the death of his mother and his former One Direction bandmate, Zayn Malik.
The 32-year-old pop star joked that the One Direction band member is 'following' her.
"I just want to be your friend!"
