In early 2006, Milby released a self-titled debut album. His concert, titled "Heartthrobs," was performed at the Music Museum on February 2 and 3, 2007. It was repeated on March 17, 2007 following the big success of the first concert. His first major solo concert, "Sam Milby: Rockoustic Heartthrob," occurred at the Aliw Theater on October 25, 2008. He also performed in several concerts in USA, Canada, Asia, and Europe.
In 2012, Milby spent three months in the United States, taking part in auditions in New York. He also performed in concerts and tours, playing Lazarus for one night in the Broadway musical Godspell, and guest-starring in Anna Maria's Benefit Concert in New York with Anna Maria's Godspell costars Corbin Bleu, Wallace Smith, Nick Blaemire, Eric Krop, and George Salazar.
