Emma Corrin shares a clip of The Crown cast singing her happy birthday

Emma Corrin celebrated turning 25 with a rousing rendition of happy birthday from her fellow actors on series four of The Crown. Scroll down for video Emma Corrin shared a video showing the cast of The Crown singing happy birthday while on set to mark her 25th birthday. The actress, who plays Lady Diana in the hit show's fourth series, also shared a snap of herself enjoying some birthday cake A cheeky Olivia Colman gave the camera the finger while the other actors are heard laughing during the video The cast, which including Olivia Colman all sang the Birthday song for Emma before applauding. Marian Bailey, who plays the Queen Mother in the series three and four of The Crown, makes an appearance in the video Tobias Menzies, who plays the Duke of Edinburgh in series three and four, heartily sings Happy Birthday to the camera, with Erin Doherty as Princess Anne joining in in the background A cheeky Olivia Colman pulled faces while singing when she - and members of the filming crew - appeared in the video Helena Bonham-Carter, who plays Princess Margaret in the show's third and fourth series, also made an appearance The clip is one of the latest behind-the-scenes videos shared by Corrin, who has released candid snaps of what went on behind the camera during the filming of the show's fourth series. Emma wrote on her Instagram story that she would watch the video every year for her birthday from now Olivia Colman enthusiastically led the birthday sing along in the video, which Corrin shared on Instagram Charles Dance, who reprises his role as Lord Mountbatten in the first episode of the Crown's series four, is also in the video Emma was Emma filmed Josh, 30, as he played with a hot wire toy, and secretly recorded him being talked through the Destiny's Child song Bootylicious.