Agnetha Fältskog
Agnetha Fältskog is a Swedish recording artist. She achieved success in Sweden after the release of her debut album Agnetha Fältskog in 1968, and reached international stardom as a member of the pop group ABBA, which has sold over 370 million albums and singles worldwide, making them one of the best–selling music artists in history and the second or third best–selling band in history.
source: Wikipedia