Last year it was Snoop Dogg ... and Shaq's calling on some of his celebrity friends once again to help him raise cash for a great cause -- the NBA Hall of Famer's throwing his 2nd annual "The Event" in Las Vegas -- and the lineup's packing serious star power!
"We've got some great performers," Shaq told Babcock on the TMZ Sports TV show (airs weekdays on FS1), saying ... "H.E.R., Pitbull, Maroon 5, Maren Morris, John Mulaney, you know this is one of the biggest fundraisers of the year.