theme song for Shameless is "The Luck You Got" by indie rock group The High Strung. The majority of the music featured in the series is from indie rock bands. The pilot episode used music from artists such as Cream, Spoon, Say Hi, 3OH!3, The Vines, The Moog, and LMFAO. The show has also featured music from Let's Wrestle, Eels, The Blue Van, Cake, Jimmy Eat World, Alien Crime Syndicate, Capital Cities, and Johnny Foreigner. In promotion for the second-season premiere, the entire cast sang their own version of a Christmas carol, entitled "Shameless: Christmas Carol". Broadcast Shameless premiered on January 9, 2011 in the United States, becoming Showtime's highest-rated series debut on record across the network's target demographic. The first episode of the series generated 982,000 unique viewers, and was Showtime's largest audience for a series premiere since Dead Like Me in 2003. The fourth episode, "Casey Casden", airing January 30, posted 1.45 million total viewers. Shameless was the cable channel's best-performing first-year drama. Defying the usual downward trend following a premiere, the series built on its initial audience, becoming number one in its time slot among adults aged 18 through 49. Subsequent episodes' audiences fluctuated between a million and 1.14 million viewers. The March 27, 2011 season finale, "Father Frank, Full of Grace," drew an audience of 1.157 million. The third season's premiere episode, "El Gran Cañon" (airing January 13, 2013), drew 2 million viewers, becoming the show's highest rated episode to date. It then maintained average ratings of just below a million viewers throughout the remainder of its episodes. Reception Critical reception Tim Goodman of The Hollywood Reporter said that "Shameless is excellent, compelling television from the first moment. As long as it stays true to the roots of the original, it's going to be essential viewing". The show's first season score on Metacritic is a 66 of 100, which is a generally favorable review. The second season score on Metacritic is a 76 of 100, indicating increasingly favorable reviews. Tom O'Neill of the Los Angeles Times reported on the Emmy buzz about Shameless, especially with respect to the performance of Emmy Rossum. He said "she didn't have much Emmy buzz after Shameless debuted in January, but that changed after she gave powerhouse turns in such episodes as 'But at Last Came a Knock'". BuddyTV ranked Shameless #8 on its list of 2011's best new TV shows.