While the sets were nearly identical , the second week was notable for its lack of special guests — except one: MADONNA!

This review contains full spoilers for Doctor Who season 2, episode 4, "Lucky Day." "Lucky Day" marks a notable shift in Season 2: It’s the first episode without Russell T Davies credited as a writer.

Find out what Justin Bieber played in his headlining set and see more highlights and photos from Day 2, including Nine Inch ...