Recent Tony Award nominated production "After Midnight" will be on fire this Summer with just announced additions Patti LaBelle and Gladys Knight.
According to Broadway, LaBelle is set to play performances as a guest vocalist from June 10 through June 29. Knight will do the same from July 8 through August 3.
The production, which earned a total of seven Tony nominations earlier this week, has previously featured guest vocalists including Fantasia, Toni Braxton and Babyface and is playing at the Brooks Atkinson Theatre in New York.
Patti LaBelle's credits include Fela! Gladys Knight's credits include Smokey Joe's Cafe.
"After Midnight," a Best Musical nominee, highlights music from the Jazz Age.
Vanessa Williams is currently on stage in "After Midnight" as a special guest vocalist.