A group of women of color within the "Time’s Up" movement against sexual harassment announced on Monday they would be joining a boycott of R&B singer R. Kelly in response to numerous sexual abuse allegations against him.

“We demand appropriate investigations and inquiries into the allegations of R. Kelly’s abuse made by women of color and their families for over two decades now,” the women said in a statement. “And we declare with great vigilance and a united voice to anyone who wants to silence us: Their time is up.”

The #MuteRKelly protest originally began last year. After Time’s Up committed to the protest, a number of celebrities expressed their support. ADVERTISEMENT

We join the call to #MuteRKelly and insist on the safety + dignity of all women. We demand investigations into R. Kelly’s abuse allegations made by women of color + their families for two decades. We call on those who profit from his music to cut ties. #MuteRKelly #TIMESUP #WOC https://t.co/RTco2ZeetZ — shonda rhimes (@shondarhimes) April 30, 2018

Standing alongside the women and sisters in the LONG OVERDUE CANCELLATION of Rkelly. #TimesUp… https://t.co/F9RUKVywXw — T'Questlove (@questlove) April 30, 2018

We join the call to #MuteRKelly and insist on the safety + dignity of all women. We demand investigations into R. Kelly’s abuse allegations made by women of color + their families for two decades. We call on those who profit from his music to cut ties. #MuteRKelly #TIMESUP #WOC pic.twitter.com/TYmDRVIH00 — Ava DuVernay (@ava) April 30, 2018

Time’s Up criticized RCA Records, Ticketmaster, Spotify and Apple Music for helping Kelly profit from his music. They also called out the Greensboro Coliseum Complex in North Carolina for hosting an R. Kelly concert next month.

Kelly has been sued by at least four women for alleged sexual misconduct and aggravated assault. Earlier this month, a woman told police in Dallas that Kelly intentionally gave her herpes.

Young women interviewed for a series of BuzzFeed reports from 2017 said the singer had held them against their will in a “cult.”

Kelly has denied allegations made against him and, on Monday, gave a statement to BuzzFeed pushing back on the protest against him.

“R. Kelly supports the pro-women goals of the Time’s Up movement. We understand criticizing a famous artist is a good way to draw attention to those goals — and in this case, it is unjust and off-target,” Kelly’s representative told BuzzFeed News.

The representative went on to describe the criticism against Kelly an “attempted public lynching of a black man who has made extraordinary contributions to our culture.”