The 54th annual Grammy Awards is underway in Los Angeles. It began by remembering Whitney Houston, who died on Saturday.

The Grammy Awards broadcast began on CBS at 5 p.m. Pacific Time (8 p.m. Eastern), with a preview telecast, red carpet and behind-the-scenes coverage.

The show can also be live-streamed through Facebook's GRAMMY Live app. Hosts Alison Haislip, Tai Beauchamp, Andrew Burnette and John Norris will bring behind-the-scenes coverage.

Courteousy of's Facebook TV app, viewers will be given an insider's tour of the preshow events on Sunday. The live-stream will cover live music performances, red carpet action, backstage interviews and photo shoots. By merging with Facebook's social network, brings viewers a social experience allowing them to chat and comment on the Grammy events as they unfold.

Last weekend we gave Facebook users the unique live experience of watching the biggest event in sports, the Super Bowl, and now we're ready to give them the same opportunity with the biggest event in music, said's president, William Mobley.

After this weekend, Facebook users will see just how much potential the FreeCast app has for revolutionizing the way we watch TV and live events, allowing viewers to not only watch these events online for free but also to connect with friends and talk about what they're watching at the same time, he added.

CBS has confirmed that's online stream will provide additional coverage from the event that will not be aired on television; however, FreeCast says the aim of the online stream is not an alternative to CBS's coverage. The online coverage is more a second screen, said Mobley.

GRAMMY Live will also have a mobile app available on the iPad, iPhone and iPod touch. The app will have interactive features including a Guess the Winner poll, where fans can cast their vote for who they think will win across 20 categories.  Social media coverage will also be integrated into the app.

More information on the Facebook app can be found here.