Things got a little more sentimental when each of the guys spoke, thanking their fans, their families and each other.
"I don't really think I can put into the words how much the four of you mean to me," Timberlake said, addressing his bandmates. "Just through hard times, through unbelievable times, through times where we were going 'What the ...?!' I just love all of you so much."
Bass took the time to thank his LGBT fans, acknowledging that he didn't have the strength to be out and proud while in NSYNC, but he has the strength today.
Meanwhile, Chasez noted that Tuesday is a day beloved by NSYNC fans everywhere: “In case any of you didn’t know: tomorrow, it's gonna be May!"
The Walk of Fame ceremony marked the first time NSYNC had reunited since the 2013 MTVVideo Music Awards. The group went their separate ways in 2002.
Over the weekend, NSYNC debuted the “Dirty Pop-Up” shop in Hollywood. The shop, which is open through May 1, contains the group’s new official merchandise, as well as props, wardrobe, artwork and photography from their 20-year career.