Joey Fatone jumped on stage to dance while attending former 'N Sync bandmate Justin Timberlake's concert in NYC on Thursday, July 10; Plus, Timberlake got a thong thrown at him! Credit: Larry Busacca/Getty Images

Joey Fatone is reliving the good ol' days! The actor-singer joined his former 'N Sync bandmate Justin Timberlake on stage during his exclusive concert at the Hammerstein Ballroom in NYC on Thursday, July 10. To make the night even more memorable, he brought his 13-year-old daughter Briahna backstage for a photo-op with the "Mirrors" crooner.

"Cool how time does not go by," he captioned the snapshot. "But it does when my kid stands next to a brother and she is almost as tall as him lol."

Fatone surprised the crowd that night when he busted a move on stage with Timberlake's backup dancers, but he wasn't the only one quick on his feet. During the performance, a female fan threw a thong at the "Take Back the Night" singer.

"This is a MasterCard sponsored event sweetheart. It won't get you more points," Timberlake quipped. "I f--king love you too."

A source tells Us Weekly Timberlake's wife Jessica Biel, Jessica Szohr, Emmy nominated Orange Is the New Black actress Laverne Cox, Meredith Vieira, and The Fray's Joe King were also in attendance.