Seen eight so far.
Tony Bennett (at Montgomery Mall, I didn't know it was him until after)
The White Stripes (Coachella, Indio)
The Flaming Lips (ATP, Long Beach)
Prodigy (HFStival, DC)
Fatboy Slim (Coachella, Indio)
Primal Scream (HFStival, DC)
P.J. Harvey (HFStival, DC)
I would have had more spontaneous acts like Lightning Bolt and Supernatural.
Also, I made top 5 artists list.