When *NSYNC were performing at sold-out shows in the ’90s, they had no idea who exactly was filling those seats, let alone that one concertgoer would end up becoming one of the biggest pop stars of her generation. Upon celebrating 25 years since their debut, the band members reflected on various moments from the past with People, including one concert special, where Ariana Grande was caught singing along from the audience.
The moment can be seen in the clip below (at 1:51), where the camera pans to a 6-year-old Grande, who is being held by her mother, Joan. The singer attended the show in Fort Lauderdale, and the footage was used for a pay-per-view special in ’99.