Solange Knowles (and Daniel Smith)
Beyonce's younger (and arguably cooler) sister Solange Knowles tied the knot at age 17 when she discovered she was pregnant with Daniel Smith's child. They were together for three years before divorcing.
The 25-year-old recently spoke about her very young marriage to London's Evening Standard magazine, and doesn't have any regrets about it.
"We would have gotten married for sure anyway, but then I found out I was pregnant," she said. "We were crazy, impulsive teenagers and I was obviously craving some sort of stability. [My family] were alarmed and frightened that their 17-year-old daughter wanted to get married and have a kid, but I'd been working since I was 13. I was making my own money. I wasn't really asking permission, and once they found out I was serious about it, they were supportive and amazing."