Ashley Tisdale, Vanessa Hudgens, Rachel McAdams

Vanessa Hudgens, Rachel McAdams, The Rock and more step out for a Hollywood premiere; Kat Von D debuts her art for Sephora; Daniel Radcliffe gets a surprise marriage proposal from an adoring fan on the red carpet at The Grove; Reggie Bush makes his foray into DJing at Wilmer Valderrama's birthday throwdown at Greystone Manor—get the details on who was partying where on Thursday in L.A. to get a head-start on the weekend in this edition of Last Night's Parties!

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Paris Hilton Nicky Hilton Wilmer Valderrama Kristin Davis Brandon Davis Ashley Tisdale Kim Kardashian Daniel Radcliffe Tom Felton Rachel McAdams Vanessa Hudgens marley shelton Grauman's Chinese Theatre Brent Bolthouse James Hetfield Reggie Bush Kat Von D Linda Perry The Grove Luis Guzman Jason Davis Josh Hutcherson Jennifer Howell Colony Dwayne Johnson Rain Phoenix Nikki Lund Bella Thorne Dwayne "The Rock" Johnson Jeff Robinov Sue Kroll Beau Flynn Tripp Vinson Donald Sutherland Greystone Manor Supperclub Dan Smith Toby Emmerich Greasy Bear Shaun Phillips Greystone Manor Wilmer Valerrama birthday Wilmer Valderrama birthday party Black House Junkies DJ Reggie Bush Wilmer Valderrama 32nd birthday Journey 2: The Mysterious Island Los Angeles Premiere & After Party Journey 2: The Mysterious Island Premiere Journey 2: The Mysterious Island Austin Butler Marcus Viscidi Robert Trujillo Charlotte Huggins Brad Peyton Chase Ryan Jeffery Katherine McNamara Garrett Backstrom High School Musical Sephora VIP Preview Party For Kat Von D's New American Beauty Art Show Wonderland Gallery Clea DuVall Kevin Llewellyn Marya Gullo Cristie Beasley Marianna Klaveno Jeffree Star Allison Beck Rita Haney Wes Borland Skully Smith "The Woman In Black" Los Angeles Premiere & After Party Shayna Brooke Chapman Mikayla Shae Chapman Annette Starbucks Wilmer Valderrama's 32nd Birthday Party Featuring DJ Reggie Bush