Has this piano riff been used before?

i just listened to the SNL Digital short called " Iran So Far Away" by The Lonely Island........The piano riff used throughout sounds VERY familiar, like it was used in a hip hop song or r and b song..........i was thinking Jahiem or something along those lines............if anyone knows it has been used before...........i would LOVE to know/..........here is a link to the song......http://www.youtube.com/watch?v=OV1c-2CRlAM&feature=related