beyoncesolangeImage: Getty

The biggest upset of the 2017 Grammy Awards was undoubtedly when Beyonce’s Lemonade was passed over for Album Of The Year. Even Adele, who won the top gong for 25, said in her acceptance speech that she “can’t possibly accept this award” because Lemonade was “so monumental and so well thought-out and so beautiful.”

While Beyonce accepted defeat with typically gracious class and good sportsmanship, her sister and fellow singer Solange had Bey’s back, throwing some major shade at the Grammys on Twitter after the ceremony. The Losing You singer tweeted a link to Frank Ocean’s open letter to the Grammys, which he posted days ago explaining his reasons for boycotting and refusing to be a part of the Grammys this year.

“Wuddup frank” she wrote alongside the link to Frank’s post, which addresses Grammys producers Ken Ehrlich and writer David Wild directly and invites them to discuss “the cultural bias and general nerve damage” he says the Grammys is afflicted with.

Adele’s win over Beyonce has sparked a discussion about institutionalized racism at the Grammys. While there’s no question Adele’s 25 is an incredible album, Lemonade has generally been perceived to have been one of the most profound releases of our time, given it aimed to empower black people and tackled the complex topic of healing the racial divide in America. Only 10 black artists have ever won Album Of The Year.

It’s not the first time Solange has stood up for her sister: who could forget that elevator footage that showed her attacking her brother-in-law Jay Z. At the time it was speculated Jay Z may have been unfaithful to Beyonce – because not many things can provoke such a fierce reaction in a woman – and this was later alluded to in the lyrics of several song on Beyonce’s Lemonade