Judith Brown is the ex-wife of Lewis' cousin, Rusty Brown, whose sister, Myra Gale Brown, Lewis wed when she was 13 and he was 23. Lewis' marriage to Myra was a scandal that marred his career for years. They divorced in 1970 after 13 years of marriage.
Lewis made Judith wife No. 7 March 9, his representative Maureen O'Connor told CNN Friday.
No other details regarding the marriage were immediately reported.
The famous singer and piano player is known for his hits "Good Golly Miss Molly," "Whole Lotta Shakin' Goin' On" and "Great Balls of Fire."