Mariah Carey has released an exclusive Valentine's Day EP to the

Wal-Mart retail chain that features five songs, including one previously

unreleased track. Mariah Carey's Valentine's Day Sampler includes

the R&B singer's version of "Theme From Mahogany (Do You Know Where You're

Going To)" — from the 1975 Diana Ross film "Mahogany" — which

had never been released in the U.S. The album also features the previously

released Carey tracks "Vision of Love," "Underneath the Stars," "My All"

and "Baby Doll." Carey will launch her first U.S. tour in seven years

on March 16 at the Staples Center in Los Angeles.