Best Celebrity Tweets: Guy Sebastian, Ellen DeGeneres, Justin Long, Alexa Chung, Nicole Richie, Joel Madden, Taylor Swift

This has been a bit of a bumper week when it comes to celebrities on social media! First we introduced you to all the best people to follow on Twitter, Facebook, Instagram and Pinterest, then we brought you our Top 10 total round up and now? Well now we're winding down with a collection of the best tweets of the week. From Guy Sebastian lamenting a lost opportunity with beauty giant Chanel, to Alexa Chung taking issue with children's game pass the parcel, we were highly amused, often bemused and once or twice, a little confused, when we caught up with all the best stars on Twitter. Keen to know more? One of our favourite male actors is new to the Twittersphere — and you'll never guess who he credits with convincing him to join — Nicole Richie is making a case for under-eye bags and Ellen DeGeneres has some rather unusual carry-on luggage . . . But there's heaps more, still. You'd better clicking and reading!