R&B stars Usher and Miguel helped kick off the iTunes Festival in London this past weekend. And for those of you who couldn't make it across the Atlantic or watch the live stream, you can check out both of their performances right here. Usher's impressive nearly 90-minute set is above while Miguel's is below. You'll hear some new material during Miguel's performance, which also features his chart-smashing hits like "Sure Thing" and "All I Want Is You."

[via HipHop-N-More]