Went to the hollywood bowl twice in the last few weeks to see the Los Angeles Philharmonic perform Holst's "The Planets" and also for John Williams conducting a load of his film scores...Star Wars, Harry Potter, Indiana Jones and a ton of others... Both brilliant.
Later this year I have Depeche Mode (hollywood bowl), Coldplay (rose bowl), elbow (wiltern), nick mulvey (troubadour) and perhaps Eric Clapton (forum)
Might also fit in The War on Drugs (Greek Amphitheater) and Alison Moyet.
Some great ones to look forward to.