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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Hollywood heavyweights of all ages including Jennifer Aniston, Jack Nicholson, Dakota Fanning, Meryl Streep and Julia Roberts step out to help honor Shirley MacLaine; Stephanie Pratt, Derek Hough and more single famous faces party with OK! Magazine at Roxbury; Jamie Chung, Taryn Manning and others hit E3 to support the fight against AIDS with a night of gaming; Vanessa Williams is honored at the Covenant House California's annual gala—it was yet another bustling Thursday across L.A. and we have the lowdown on who partied where in this installment of Last Night's Parties. More»

Miranda Kerr, Kate Winslet and Guy Pearce kick-off Australia Week; Kirsten Dunst, Brittany Snow, Elijah Wood and many others step out for The Art of Elysium; Sean Penn, Julia Roberts, Leonardo DiCaprio and more help raise funds for the Haiti relief effort; BAFTA hosts a tea party for awards season with Michelle Williams, Charlize Theron and a slew of other notables; Aziz Ansari, Paul Rudd and Seth Rogen throw their star power behind Hilarity for Charity to benefit the Alzheimer's Association—it was a fully-loaded weekend of star-studded events in L.A. that had (almost) nothing to do with the Golden Globes and we have the details in this edition of Last Night's Parties. More»