The 'Losing You' singer likes to borrow items from her older sister's wardrobe whenever they spend time together, but their number one rule is remembering to return each other's prized possessions.
She said: ''Beyonce and I swap clothes all the time, especially when were on vacation. The deal is we have to give them back afterwards though! I've had a distinctive style since I was a child.
''Between the ages of three and six I wore my tap shoes with absolutely everything. I didn't borrow my sister Beyonce's clothes [then] though - she's older than me, so they were always too big.''
Solange, 26, is famed for her exuberant style and love of bright colours and clashing prints, and she says she won't ever wear black because it's too boring.
She said: ''I'd describe my style as eclectic - plenty of bold prints and funky textiles. I like classic pieces with a really interesting structure and pattern, like my acne blazer, which is covered in dollar signs.
''If I want to keep it simple I wear stark white, I'm not into wearing black.''
The star refuses to employ a stylist since she believes she can do a better job and likes to line up her red carpet looks well in advance.
Solange added to the UK's InStyle magazine: ''Getting dressed for the red carpet is second nature to me. Before I went on the road I would personally email designers and do all the studio visits myself.
''So many stylists will tell you not to wear certain prints or silhouettes, and that's why i prefer to dress myself.''