Here you can listen to and download the Didn't Cha Know ringtone for free. Artist: Erykah Badu. You can choose from 8 versions between 5 and 71 seconds. Tags: percussion, drum and slow. Click a tag below to see more ringtones like this. Two formats are available: .MP3 for Android and other phones and .M4R for iPhone. All ringtones by Erykah Badu are collected on the artist page.