HOLLYWOOD, CA - FEBRUARY 22: Singer Lady Gaga performs onstage during the 87th Annual Academy Awards at Dolby Theatre on Febr
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The Frank Sinatra tribute concert coming to CBS next month keeps getting more impressive: Lady GagaCeline Dion, Zac Brown and Harry Connick Jr. have all been added to the star-studded salute to the Chairman of the Board.

Sinatra 100 - an All-Star Grammy Concert will feature the stars singing Sinatra song and honoring his legacy on what would have been his 100th birthday. The special is presented by the Recording Academy, AEG Ehrlich Ventures and CBS.

Gaga and co. join previously announced performers Tony BennettGarth Brooks, Adam Levine, Carrie UnderwoodUsherAlicia Keys and John Legend.

The tribute concert will be filmed on Dec. 2 at the Wynn Las Vegas' Encore Theatre. CBS will then broadcast the special on Sunday, Dec. 6--one day before the 2016 Grammy nominations are announced.