Beyoncé's sister Solange Knowles has received a massive boost to her record sales since video footage of her fight with brother-in-law Jay Z emerged.

The notorious footage saw the 27-year-old singer apparently lash out at superstar rapper Jay Z in an elevator as the pair left the Met Gala Ball in New York. Beyoncé was also in the lift, but did not appear to be involved in the row.

The trio have since spoken out about the incident claiming they have 'worked through their issues as a family'. 

Since the footage was leaked, the R&B singer’s record sales have increased by a whopping 233 per cent.

Solange's digital sales were at 2,000 downloads for the week ending in May 18, up from 600 the previous week, Nielsen SoundScan reports.

Solange’s last release was EP True in 2012.