Who is really singing the annoyingly catchy Two And A Half Men theme song? Two And A Half Men is a sitcom that debuted in 2003 and originally centered on the broke Alan (Jon Cryer) moving into his brother Charlie's (Charlie Sheen) Malibu beach house after he divorces his wife. The half man of the title refers to Alan's adorably dimwitted son Jake (Angus T. Jones), and the series revolved around Charlie's lifestyle of casual sex and drinking contrasting with Alan's perpetual loser status. Like most Chuck-Lorre-created sitcoms such as The Big Bang Theory, Two And A Half Men rarely received warm reviews, but it was a ratings juggernaut.

Charlie's character on the show wrote commercial jingles, so it makes sense the theme for Two And Half Men itself is catchy – annoyingly so, as it just consists of the words "men" and "manly" over and over again. Lorre himself co-wrote this theme with Lee Aronsohn,...