Curtis Stigers (born October 18, 1965) is an American jazz singer. He achieved a number of hits in the early 1990s, most notably the international hit "I Wonder Why" (1991), which reached No. 5 in the UK and No. 9 in the US. == Career == Stigers was born in Hollywood, California, but grew up in Boise, Idaho. He started his music career as a teenager, playing in rock and blues bands, as well as receiving an education in clarinet... [more on Wikipedia]