Beyonce Super Bowl
Beyonce angered police unions with her performance of politically-charged Formation at the Super Bowl halftime show in February 2016 Patrick Smith/Getty Images

Beyonce's new music video may just be her most important to date with reports claiming the singer is planning to express her full support of the Black Lives Matter movement for a second time. The parents of teenagers Trayvon Martin, Michael Brown and Tamir Rice - who were shot and killed by police - are expected to appear in the music video.

According to a report from reputable Beyonce fan site and InFlexWeTrust, the mothers of all the victims, including Martin's mother Sabryina Fulton and Lesley McSpadden, will hold photos of their sons in the content of the planned video. It has not yet been revealed which song the music video will accompany.

Beyonce, 34, and her husband Jay Z, 46, have been vocal supporters of the Black Lives Matter movement over the last couple of years, attending several rallies in support of the police brutality victims, as well as meeting with their families. Following the Ferguson riots in August 2014, it was claimed that the music "power couple" donated tens of thousands of dollars in bail money to protesters who were campaigning during the unrest.

In February 2016, it was announced that Jay Z was donating $1.5m (£1m) to the Black Lives Matter cause through his music streaming service Tidal. The money was raised through the Tidal X: 10/20 charity concert in October 2015, featuring performances from Beyonce, Usher, Prince and Nicki Minaj.

Beyonce's new music video may add fuel to the tension between the Grammy Award-winning singer and the authorities in light of the furore caused by her latest single Formation. On the track, the star casts the spotlight on racial tension while proudly praising her African-American heritage. However, it was her performance of the song at the Super Bowl halftime show in February which angered the police. Beyonce and her dancers dressed as Black Panther members, but the authorities claimed the statement promoted an anti-police message, prompting an attempted boycott of the singer's upcoming 'Formation' world tour, which is set to be "politically aggressive".

The Single Ladies singer's world tour launches on 27 April in Miami, Florida and her sixth studio album is expected for release around the same time.