1. Jessie J performing in the Subway:
2. Lady Gaga at the Plaza Hotel Oak Room:
3. Arcade Fire in New York's Union Square:
4. Ellie Goulding on the steps of the Los Angeles County Museum of Art:
5. B.o.B on a Plane:
6. Jewel (in disguise) at a random karaoke bar:
7. The Lumineers in the streets of San Francisco:
8. Solange in a London cab:
9. Justin Bieber outside the Buckingham Palace:
10. Shakira in a venue's parking lot:
