VH1 has finished casting for this year’s VH1 Divas special.
Joining Patti Labelle and Jessica Simpson -- who were announced by the network Feb. 23 -- will be Deborah Harry, Cyndi Lauper and Joss Stone.
The special will air live from the MGM Grand in Las Vegas Sunday, April 18 at 9 p.m. EST.
The Divas specials raise funds for the "VH1 Save the Music Foundation," a nonprofit organization dedicated to restoring instrumental-music programs in America's public schools and to raising awareness of the positive impact music participation has on students.
Since the foundation was created in 1997, more than $25 million worth of musical instruments have been donated to 1,000 public schools in 80 cities, VH1 said.