Rosa was born in Germany and spent her childhood in Vienna, Austria and later Mexico. Started playing drums at age 16. Attended two music conservatories in Mexico and later finished her studies at Musicians Institute, PIT in Los Angeles studying under Joe Porcaro and Casey Scheuerrell.�Rosa has performed with artists such as The Lennon Sisters, Ann Margret, Pat Boone, Glen Campbell, Debby Boone, Shari Lewis, Elkie Brooks, Petula Clark, and the Broadway show�"Five Guys Named Moe". In 1992, she began her association with Andy Williams with whom she performed with until 2009. Rosa spent 2018 on Broadway playing drums for "Summer: The Donna Summer Musical".