Purple party for Jen

THE cast and crew of “The Color Purple” threw a surprise celebration for Jennifer Hudson (above) at Upstairs at the Kimberly Hotel on Sunday night to celebrate the end of her six-month run in the hit Broadway show. We’re told the venue was filled with purple lighting and the Oscar winner was presented with a purple, heart-shaped cake. Hudson and co-star Danielle

Brooks sang several songs — including “Uptown Funk” and Prince numbers — with a live band throughout the evening.