Nelly Furtado & Shakira (I really want this to happen the most,it would totally rock)
Nelly Furtado & Leona Lewis
Nelly Furtado & Alicia Keys
Nelly Furtado & Natasha Bedingfield
Shakira & Leona Lewis
Shakira & Avril Lavigne
Alicia Keys & Beyonce
Daughtry & Matchbox Twenty
Linkin Park & Nickelback
OneRepublic & Linkin Park
OneRepublic & Daughtry
OneRepublic & Usher
OneRepublic & Leona Lewis