Question: who sings oh happy day in sister act 2

title: Ryan Toby
text: Manager Marvin Thompson introduced Toby to then RCA Records A&R Director Kenny Ortiz , which eventually lead to a meeting with Disney & Buena Vista / Touchstone Pictures Executives . The company was looking for young actors / singers for their upcoming project titled Sister Act II : Back In The Habit ( starring Whoopi Goldberg ) . Landing a principal role at 16 years old , the talented singer / actor was featured on the accompanying soundtrack . He wrote the rap part to the much loved single `` Joyful , Joyful '' which also featured newcomer Lauryn Hill and was a featured soloist on the single `` Oh Happy Day '' . After filming , Toby was put in touch with Jazzy Jeff ( of The Fresh Prince and Jazzy Jeff fame ) by his former Manager Marvin Thompson and was invited to Philadelphia . Jeff and Ryan bonded and he was asked to sign to his Touch of Jazz Production Company . It was during that time that Will Smith visited with Jeff . Smith was working on his upcoming album titled Big Willie Style . Smith heard Ryan and wanted him to work on his album . The music / rap turned into Smith 's hit single `` Miami '' . Ryan received writing credits for `` Miami '' , `` Do n't Say Nothing '' , `` I Loved Her '' and `` Candy '' . The album sold over 20 million copies . 

Answer: answer: Ryan Toby met with Disney & Buena Vista/Touchstone Pictures Executives. The company was looking for young actors/singers for their upcoming project titled Sister Act II. He was a featured soloist on the single ``Oh Happy Day''.