The Coachella Valley Music and Arts Festival is known for the rather eclectic variety of celebrities attending it and this year was no different.

The event is a three-day music and arts festival that is held in California and features simultaneous concerts from some of the biggest names in music and is, of course, absolutely the place to be seen, for all the celebrities. Paris Hilton, Jared Leto, The Hoff and Vanessa Hudgens... there were plenty more.

The various stages at the event include the Coachella Stage, the Outdoor Theatre, the Gobi Tent, the Mojave Tent and the Sahara Tent. The festival has a desert-like setting as it is held in Indio, which is part of the Californian desert. So throwing water on each other and acting completely crazy is just part of what the festival is all about.

The performance list included Pulp, the Black Keys, Arctic Monkeys, Madness, Swedish House Mafia, Noel Gallagher's High Flying Birds, Kaiser Chiefs, Laura Marling, Kasabian, Mike Snow, Bon Iver, Santigold, The Hives, Justice and Beirut, Dr Dre and Snoop Dogg.

A striking aspect of the festival is that it is environment-friendly. In fact, during the festival, carpooling is religiously practiced - the term given is "carpoolchella".

Another eco-friendly practice introduced by the Coachella Festival is a $10 refillable water bottle; refills are available at a number of stations inside the festival and within the campgrounds.

As for the festival itself, in a stunning display of technology, rapper Tupac Shakur, who was murdered in 1996, was brought back to life - as a holographic image - for a concert with Dr Dre and Snoop Dog. US Magazine reported the legendary rapper appeared in a shockingly realistic image and performed "Come With Me" and "Gangsta Party", alongside Snoop Dogg. The Stuff also commented on the wonderful act, saying the hologram left the audience in awe.

According to MTV, the performance cost somewhere between £62,000 and £250,000. The hologram was created by Hollywood special effects studio Digital Domain, who have previously worked on films such as "The Curious Case of Benjamin Button", "TRON: Legacy" and "X-Men: First Class".