Actress Emma Roberts is Bauble Bar’s latest celebrity Guest Bartender. Roberts’ 19-style collection launches on BaubleBar.com today and the pieces retails from $18 to $150. The Guest Bartender as Told by Emma Roberts is the e-tailer’s largest campaign yet, and will see multiple deliveries of baubles over the next three months. Additionally, a 10-piece holiday assortment is set to roll out in early November. The actress will star in a supporting campaign (behind the scenes shot in the photo on the right), and engage with her followers to promote the new collection using #AsToldByEmma on social media.