4Singers app for iPhone and iPad

4Singers is an audio tutorial series for aspiring singers or professional musicians who want to take their vocals to the next level. The instructor is professional vocalist Tracy Hamlin. Ms. Hamlin has been performing professionally since the age of 11. She is an international performer who has shared the stage with the likes of Carlos Santana, Jonathan Butler and Al Jarreau. She is the former lead vocalist with award winning group Pieces of a Dream and recorded two albums with them, "Loves Silhouette" (2002) and "No Assembly Required"(2005). Tracy has released two solo projects, "Seasons"(2006) and "Better Days"(2009).

To see Tracy Hamlin in action, visit YouTube and search for Tracy Hamlin Live in London. For additional information please visit 4Singers.com or TracyHamlin.com.