Lindsay Lohan joined the cast of Glee yesterday in LA to start shooting her cameo on the series. Lindsay was spotted smoking a cigarette and sporting some oversized shades between takes. Costars and couple Lea Michele and Cory Monteith looked cozy when they weren't shooting, and Dianna Agron, Naya Rivera, Chord Overstreet, and Matthew Morrison were also seen heading to work on the latest episode of the show. Dianna went to dinner with her friend Taylor Swift and two other ladies to blow off some steam after wrapping yesterday. The foursome tweeted a photo of them holding up signs wishing actress Shirley MacLaine a happy birthday, and Diana said they used the festive occasion as a reason to dress up and go out for a classy girls-only dinner at the Polo Lounge at the Beverly Hills Hotel.