Biography Wikipedia
Wikipedia:
Bruce R. Gaitsch (born February 7, 1953 in Chicago, Illinois) is an American guitarist, composer, and producer. He is best known for working with notable musicians such as Richard Marx, Chicago, Peter Cetera, Madonna, Agnetha Fältskog and many others as a session musician and songwriter. Gaitsch co-wrote the Madonna song "La Isla Bonita", a single that reached number one on many international charts and earned Gaitsch an award from the American Society of Composers, Authors and Publishers in 1987.