Jay Z ,Usher,Kelly Rowland & more at Beyonce's 35th Soul Train themed birthday party

Jay Z and Usher were in full character as they celebrated Beyonce's birthday with a Soul Train themed party ..Guests include Solange and husband, Kelly Rowland,Lala and husband Carmelo Anthony ,Alicia Keys and Swizz Beatz,Chance the Rapper and even little Blue Ivy .