R. Kelly's lawyer speaks out as collaborators pull support for the singer

Kelly is facing backlash after a recent Lifetime docuseries chronicled allegations of abuse against the singer -- and stars like Lady Gaga are now expressing regret about working with him.
7:30 | 01/11/19

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Transcript for R. Kelly's lawyer speaks out as collaborators pull support for the singer
Reporter: The public outcry surrounding R. Kelly continues to grow after more than a dozen women shared their harrowing stories of alleged controlling and abusive behavior in the explosive docuseries "Surviving R. Kelly." It was consensual but consented by intimidation. There was an iPad, and I didn't want my face on it. Reporter: And the micro scope intensifies. I'm here today to encourage victims of sexual assault or domestic violence related to these allegations to please get in touch with our office. Reporter: And they are. State attorney's office confirms they've received multiple calls related to the singer. The "I believe I can fly" singer has accusations back to the '90s. He was tried and acquitted of charges in 2008. We deal with proof, okay? And where's the proof? Reporter: Tonight his attorney Steven Greenburg is speaking out. Is there anything you'd like to say on behalf of your client to set the record straight? None of this is criminal. The state's attorney is asking for people to come out of the wood work and do what? Complain that he mistreated them a little bit here or there? Or he talked to them improperly? I mean, he didn't do anything wrong. There are no underage victims. No sexual assault victims, there are no victims of domestic violence that they're going to find. It just didn't ever happen. Reporter: Earlier today, lady gaga became the latest high-profile artist to speak out against R. Kelly, writing on Twitter, I stand behind these women 1,000%. Believe them, know they are suffering and in pain and feel strong that their voices should be heard and taken seriously. ??? ??? gaga also addressed her 2013 collaboration with Kelly, "Do what you want with my body", performed here on snl. While the music video was so controversial, it was never formally released. Both R. Kelly and I have sometimes very untrue things written about us. So in a way, this was a bond between us. Reporter: A year after working with Kelly, gaga revealed that she herself was a survivor of sexual assault and has now become an outspoken advocate. I myself am a survivor. Reporter: Performing her balance add "Till it happens to you." Performing at the 2016 oscars. With the emotional vision of sexual assault survivors coming out of the shadows. ??? ??? last year at an event, gaga revealed more about her pain. After I was assaulted, when I was 19, I changed forever. Part of me shut down for many years. I didn't tell anyone. I avoided it myself. And felt shame even still today standing if front of you. I feel shame for what happened to me. Reporter: The provocative song taking on a new level of controversy, in light of the allegations against Kelly. Gaga is now apologizing. I'm sorry, both for my poor judgment when I was young and for not speaking out sooner. In her statement today, gaga tried to explain her mind set during the collaboration, saying as a victim of sexual assault myself I made both the song and video at a dark time in my life. My intention was to create something extremely defiant and provocative because I was angry and still hadn't processed the trauma in my own life. I think it's clear how explicit my thinking was. It's hard to think of big stars from the last 20 years that he hasn't worked with, everyone from Jay Z to Mary J. Blige, to Maxwell, he's had a lot of protege acts as well. Reporter: Some now regret their decision. Chance the rapper tweeted, I apologize to all survivors for working with him and for taking this long to speak out. And just today, the band Phoenix, who collaborated with Kelly and performed at Coe chela tweeted, we regret we were not more informed and discerning. Music streaming numbers for R. Kelly have doubled since the docuseries aired. His name is out there and people are like, wow, I haven't played R. Kelly for a while. Reporter: As for the collaboration with gaga, it's now been removed. The song "Do what you want" is being taken down from other streaming services. In that bombshell docuseries now seen by 20 million viewers, his alleged victims describe physical and sexual abuse stretching over months and years. He was being really nice. And he asked me how old I was. I told him I was 17. Young girls are impresable. Likee's R. Kelly. Reporter: F R. Kelly's ex-wife, Andrea Kelly, justice is long overdue. She says she was a victim herself for 13 more years of emotional, physical and sexual abuse at the hands of Robert Kelly. She and the singer have three children together. Did you ever fear for your life? Yes. Reporter: You thought he might kill you. Yeah. Reporter: Your kids? No. But me definitely. Reporter: What have you learned about yourself through all of this? I know now that I'm being use the for something greater than me. Reporter: In the state of Illinois, there is no statute of limitations on sex crimes, but it involves people coming forward to bring their claims. Without the victim, there is no case. When a victim comes forward and says this happened to me and a that case, not only goes to trial, that case is winnable. In terms of why now, I feel like seeing and hearing those stories told so graphically, combined with #me too, that may finally mean the time is up for him. Reporter: For night Lynn, Lindsey Davis in Chicago.

This transcript has been automatically generated and may not be 100% accurate.

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