Taylor Swift and Katy Perry joined, with Swift set to perform from Australia and Perry roaring in from Canada.
The rest of the lineup, which will perform live at the Nokia Theater in L.A., includes Lorde, Macklemore and Ryan Lewis, Keith Urban and Robin Thicke.
The latter will take the stage for "Blurred Lines" alongside rapper T.I. and Earth, Wind and Fire.
R&B artist Miguel will s
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