If Memorial Day Weekend represents the unofficial start to summer, then this summer will be kicking off in California in a BIG way as I LOVE THIS CITY —a new Electronic Music festival event produced by Live Nation—will make its debut. I LOVE THIS CITY will take place May 25th and 26th at Shoreline Ampitheatre in Mountain View and on May 26th and May 27th at San Diego's PETCO Park.

Over 40 of electronic music’s top artists are confirmed for I LOVE THIS CITY including TIËSTO, along with Steve Aoki, Sebastian Ingrosso, Laidback Luke and Chuckie. Check out the initial lineup below and get ready to buy your tickets on Friday, March 16th at noon. Fore more info, head to the official website for I LOVE THIS CITY Festival.

UPDATE: A fistful of awesome acts has been added to the lineup for I Love This City San Francisco including Afrojack, David Guetta, Sebastian Ingrosso, Feed Me and Nit Grit

I LOVE THIS CITY Festival Lineup
Friday, May 25
Afrojack
Sebastian Ingrosso
Duck Sauce
Steve Aoki
Chuckie
Datsik
James Murphy of LCD Soundsystem
AraabMuzik
Borgore
Brodinski
Claude VonStroke
Cookie Monsta
The Crystal Method
Cut Chemist
Dirtyphonics (live)
FareOh
Holy Ghost!
Nervo
Oliver
Sh*t Robot
Sofi
Tenderlions
WhiteNoize
plus special guest to be announced

Saturday - May 26th
Tiësto
David Guetta
Laidback Luke
Excision
Feed Me
Apparat
BT
Doctor P.
Dyloot
Felix Cartal
Harvard Bass
Helicopter Showdown
Holy F*ck
Jaguar Skills
Kill The Noise
Madeon
Miles the DJ
NiT GriT
Picture Plane

Curious what else is on the radar? Check out MetroWize's 2012 Music Festivals Guide!