Lady Gaga and Celine Dion have been added to the list of performers singing in honor of Frank Sinatra next month.
Zac Brown and Harry Connick Jr. will also perform at "Sinatra 100 - An All-Star GRAMMY Concert'' on Dec. 2 in Las Vegas, the Recording Academy announced Tuesday.
Sinatra, who died in 1998 at 82, would have turned 100 on Dec. 12.
Previously announced performers include Garth Brooks, Tony Bennett, Carrie Underwood, Alicia Keys, John Legend, Adam Levine and Usher. More performers will be announced at a later date.
The taped event at the Wynn Las Vegas Encore Theatre will air as a two-hour CBS special on Dec. 6. The Recording Academy will announce nominees for the 2016 Grammy Awards on Dec. 7.