The song "Smile Alone" does not appear to be widely recognized, and the search results do not provide a clear answer to who performed it in 2013. However, the song "Smile" has been performed by various artists, including Michael Jackson, who often cited it as his favorite song. Pink Martini also released a version of "Smile" in 2013 as the closing track of their album. If "Smile Alone" is a less-known song or a variation of "Smile," it might not be well-documented online. For more information on the song "Smile" and its various performances, you can refer to the Wikipedia page on "Smile" here.
Who was the head coach of Geylang International during the 2013 season?
Who was the top scorer for Geylang International FC in 2013?
Which team won the quarter-finals (1st leg) match on 23 July 2013?
How many points did Yeedzin earn in the 2013 AFC President's Cup group stage?
How many employees did Widdowson Group have in the year 2013?