Couldn't connect to xbox live on the 360 for almost 6 hours. At first I couldn't find anything online about it so was worried it was just me. Quick search on Twitter showed I wasn't alone though. Looks like it was a DDoS attack by "Lizard Squad". The good folks at xbox support had no idea there was even an issue it seems. Anyways glad it was fixed.
Link to an article: http://www.gamezone.com/news/lizard-squad-returns-takes-down-xbox-live-7943-jran
Link to an article: http://www.gamezone.com/news/lizard-squad-returns-takes-down-xbox-live-7943-jran