Back of The Celebrities Bring Their Sidekicks and Phones Out to Party It was couples' night for a handful of stars at T-Mobile's Sidekick LX launch party in LA yesterday. Pete Wentz took a break from his tour to reunite with Ashlee Simpson, who tweeted about how great it was to see DJ AM and Travis Barker together. Doug Reinhardt came attached at the hip with Paris Hilton as usual, and two of his exes, Lauren Conrad and Amanda Bynes, were both celebrating as well. Heidi Montag updated her status excitedly all night long while her unrealistic rap star husband Spender Pratt took a break from fielding calls after posting his phone number on Twitter. Kristin Cavallari is ready to spice up The Hills, but last night the show's original girls were perfectly red carpet ready. View 70 Photos › Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 To see more photos including Kim Kardashian, Nikki Reed, Adrian Grenier, Anna Faris, and many others just . View 70 Photos › Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 Photo 6 Photo 7 Photo 8 Photo 9 Photo 10 Photo 11 Photo 12 Photo 13 Photo 14 Photo 15 Photo 16 Photo 17 Photo 18 Photo 19 Photo 20 Photo 21 Photo 22 Photo 23 Photo 24 Photo 25 Photo 26 Photo 27 Photo 28 Photo 29 Photo 30 Photo 31 Photo 32 Photo 33 Photo 34 Photo 35 Photo 36 Photo 37 Photo 38 Photo 39 Photo 40 Photo 41 Photo 42 Photo 43 Photo 44 Photo 45 Photo 46 Photo 47 Photo 48 Photo 49 Photo 50 Photo 51 Photo 52 Photo 53 Photo 54 Photo 55 Photo 56 Photo 57 Photo 58 Photo 59 Photo 60 Photo 61 Photo 62 Photo 63 Photo 64 Photo 65 Photo 66 Photo 67 Photo 68 Photo 69 Photo 70 Images include: Amanda Bynes, Anna Faris, Ashlee Simpson, Brittny Gastineau, Doug Reinhardt, Emmy Rossum, Heidi Montag, Kim Kardashian, Lauren Conrad, Mark Hoppus, Paris Hilton, Pete Wentz, Rashisda Jones, Weezer, Spencer Pratt, Blink182, Adrian Grenier, Carey Hart, DJ AM, Kelly Osbourne, Madeline Zima, Michael Johns, Nicky Hilton, Nikki Reed, Taryn Manning, Travis Barker Source Comments redchick152 8 years oh lauren, you couldn't have picked something better to wear? she looks SOOO casual. cute shoes though. sweetescape 8 years I actually think Paris' dress is really cute NikkiBaby89 8 years : / sabrina27 8 years Cute shoes LC! missmegs825 8 years Ugh. This is one hollywood party you could not have paid me to attend. wicca_08 8 years I'm ogling for a gladiator shoes! CaterpillarGirl 8 years POP out of everyone who was there, you pick your favorites to be featured (which are the d listers) and leave out the real talent of hollywood like Zachary Quinto, Rashida, even Anna Faris.