With a new album, 'DNA,' and world tour underway, the band is looking back at their most successful project to date.
The singer also dished on his new solo record and having his 10-year-son, James, play a younger version of himself in his new video.
The singers sweetly escorted their gorgeous wives on stage during their final 'Larger Than Life' residency gig in Las Vegas.
The 41-year-old singer called his daughter's request 'a virtual dagger.'
ET spoke with the 'Avengers' superfan on the red carpet at the 'Avengers: Endgame' premiere in Los Angeles.
The boy band was formed on April 20, 1993.
ET has your roundup of celebs from Coachella to Singapore.
The pair shared the stunning lineup of famous friends that are involved!
The boy band also had a special Q&A at the Grammy Museum in Los Angeles on Monday.
ET got a look inside the GRAMMY Museum's 'Backstreet Boys: The Experience' one of a kind 'Ultimate Fan Experience.'
The singer also shared why he broke down in tears while performing one of his new tracks at a party he hosted in Las Vegas on Friday.
The Backstreet Boys head out on their 'DNA World Tour' on July 12.
The Backstreet Boy opened up about his hurdle-filled road to adulthood and how becoming a father made him finally "grow up."
ET was on set for an exclusive sneak peek at the Backstreet Boy's wedding in his new 'Boy and a Man' video.