Brenda Song & Aly Michalka: Op Winter Wonderland!

Rob Kardashian pulls in Brenda Song and Aly Michalka as they celebrate Op’s Winter Wonderland held at Siren Studios in Los Angeles on Wednesday night (November 16).

The trio were joined by Aly‘s sis AJ, Nastia Liukin, Trevor Donovan, Stephanie Pratt and more!

Cast member Kat Graham, who couldn’t be there, debuted her new track, “Take Me Away” at the party. Produced by Dr. Hollywood and created especially for OP, free downloads of the song will be available exclusively at Facebook.com/op starting TODAY!

“So excited for the @OpOceanPacific party this week. Love getting to see the whole cast together, plus I get to bring AJ:),” Aly tweeted in excitement.

Check out all the party pics inside…