Rihanna performed 'ANTi' singles 'Needed Me' and 'Work' during Drake's 7th annual OVO Fest at the Air Canada Centre on Sunday. Drake joined her for the latter and they also performed 'Too Good,' another duet of theirs from Drake's album 'Views.'Ri also performed 'Bitch Better Have My Money' too. Who thinks Drake and Rihanna should embark on a joint world tour? I think some serious money could be made from that. Their stage chemistry is soooo contagious. Check out three of the performances inside.