Sad news for another Hollywood couple. Avril Lavigne and Chad Kroeger are separating, the singer announced on Instagram today. Lavigne wrote alongside a pic from their wedding day, "It is with a heavy heart that Chad and I announce our separation today."Adding, "We are still and forever will be, the best of friends, and will always care deeply for each other. To all our family, friends and fans, thank you sincerely for the support."