Lucy Hale celebrates NYLON's December/January issue with friends; Kellan Lutz and Sophia Bush are among the many at Charlie Ebersol's birthday/fundraising event; Sarah Hyland, Glenn Close, Joel McHale and others hit the American Giving Awards; Jessica Alba, Samuel L. Jackson and Tenacious D. honor the best in video games with Spike TV; Megan Fox, Brian Austin Green, Reese Witherspoon and many more attend a March Of Dimes luncheon in Beverly Hills; Robert De Niro, Bradley Cooper and Zoe Saldana celebrate the Silver Lining Playbook at Chateau Marmont—get the full rundown on L.A.'s top weekend events in today's installment of Last Night's Parties.

[Megan Fox, Brian Austin Green, Reese Witherspoon] [Amanda Peet, Elizabeth Banks]

Lucy Hale celebrates NYLON's December/January issue with friends; Kellan Lutz and Sophia Bush are among the many at Charlie Ebersol's birthday/fundraising event; Sarah Hyland, Glenn Close, Joel McHale and others hit the American Giving Awards; Jessica Alba, Samuel L. Jackson and Tenacious D. honor the best in video games with Spike TV; Megan Fox, Brian Austin Green, Reese Witherspoon and many more attend a March Of Dimes luncheon in Beverly Hills; Robert De Niro, Bradley Cooper and Zoe Saldana celebrate the Silver Lining Playbook at Chateau Marmont—get the full rundown on L.A.'s top weekend events in today's installment of Last Night's Parties. More>>

Miley Cyrus croons for Britney Spears and the Halston team at City of Hope's Spirit of Life gala; Helen Hunt and John Hawkes step out for The Sessions premiere at LACMA; William H. Macy, Jane Lynch and Jimmy Kimmel attend the 2012 Media Access Awards—get the details on Wednesday night's top destinations around town in this installment of Last Night's Parties.

Audrina Patridge and Lance Bass hit The Thirst Project's 3rd Annual Gala; Elijah Wood, Russell Brand and Louis C.K. step out for FX network's Summer Comedies Party at Lure; Bruno Mars and and Tommy Lee attend the Spotify Quincy Jones Media Event at Andaz; Justin Bieber, Selena Gomez and more join Katy Perry at the big Hollywood premiere of her Katy Perry: Part Of Me documentary—it was quite a star-studded eventful Tuesday across Los Angeles and we have the details on what went down where in this edition of Last Night's Parties. More»

Jessica Alba and Elisabetta Canalis enjoy a day at L.A.'s premier luxury baby and toddler show; The Actors' Fund honors Tony Award winner Jason Alexander at a viewing party; Courteney Cox hosts the Vintage Hollywood Fundraiser at her ex-husband's home; Hollywood’s most stunning starlets hit the 11th annual Chrysalis Butterfly Ball in Brentwood; Julianne Hough, Tom Cruise and cast-mates pose on the red carpet for the ‘Rock Of Ages’ world premiere — it was yet another event-filled weekend in L.A. and we have the details on who partied where in this edition of Last Night's Parties.

Tom Cruise & Julianne Hough at the Rock of Ages premiere [via]

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Fergie and Josh Duhamel celebrate the launch of Don "DB" Brooks' Don-A-Matrix Training method; AnnaLynne McCord is honored at the Drawing Hope International Masquerade Gala; "Grey's Anatomy" hosts The Songs Beneath The Show benefit party; the beautiful people of "90210" have a Season 4 wrap party at Pink Taco; Jane Lynch hosts the kick-off event for Adopt The Arts; Julia Roberts and Lily Collins step out for the Los Angeles premiere of Mirror Mirror—St. Patrick's Day wasn't the only reason to have a party over the weekend, and we've got all the details on the biggest events that went down in Los Angeles and the notables who attended them in this edition of Last Night's Parties! More»

The Kardashian sisters, Blake Lively, Zoe Saldana, Taylor Swift and more step out for the 2011 Teen Choice Awards in Universal City where Lautner, Bieber, and "Glee" go home with big wins; Christina Ricci, Elisha Cuthbert, Felicity Huffman and some of TV's brightest rising stars attend Disney ABC Group's TCA 2011 Summer Press Tour—young Hollywood was out in numbers last night, with tweens barely old enough to drive staying out way past bedtime all over town and we've got the details in this edition of Last Night's Parties. [Selena Gomez, Justin Bieber photo via] More»