Possible Clues:

• Group with the 1995 #1 hit 'Waterfalls'
• Group parodied by Weird Al in 'Phony Calls'
• 'No Scrubs' band
• R&B group named for its three members
• What a recent ex may need
• What 67-Across provide
• An attentive doc gives it to a patient
• NYC's cab overseer
• R&B group with the hit 'Ain't 2 Proud 2 Beg'
• 'LA Ink' channel