The 31-year-old singer surprised fans with the generous donation during his concert on Saturday.
The boy band released its self-titled album on Aug. 12, 1997.
Lil Rel Howery, Lakeith Stanfield, Jerrod Carmichael and Tessa Thompson also star.
Plus, Nick Lachey, Drew Lachey, Justin Jeffre & Jeff Timmons tell ET how they're preparing for their first-ever 31-city Christmas tour.
The group's self-titled album will be released on Aug. 25.
Vicky Cornell also committed $100,000 toward the Chris Cornell Music Therapy Program.
The 37-year-old singer's upcoming album, 'Beautiful Trama,' drops on Oct. 13.
"The dancers and security completely surrounded her and tackled him to the ground," a concertgoer tells ET.
The 32-year-old pop star covers the September issue of 'W' magazine.
The late singer would have turned 54 on Aug. 9.
We'll never forget the 'Rhinestone Cowboy.'
The singer also announced the release date, and that her new single would be dropping at midnight.
The rapper also reveals what it's really like to work with Beyonce.
The 30-year-old singer also gave one of her first live TV performances in years.
