More celebrities join Seth Rogen in growing boycott against SiriusXM over Steve Bannon show CEO Steve Bannon speaks to '60 Minutes' (Screen capture)

Singer and songwriter Melissa Etheridge and actor John Leguziamo have joined Seth Rogen in boycotting SiriusXM radio after the network announced that Bannon will be joining "Breitbart News Daily" as a host and commentator.

According to CNN, Etheridge -- who is walking away from her own SiriusXM show -- said on Twitter, "After news that @SIRIUSXM has given #SteveBannon a show, I can no longer in good conscience be a part of my show," she tweeted, later adding, "I will fight for anyone's right to free speech. I will not be a part of amplifying or normalizing hate speech."

Leguziamo tweeted to his followers that he is canceling his subscription to the cable radio service and urged his followers to do the same, writing, "Just canceled my #SiriusXM because they hired #Bannon ! No hate mongers!"

Meanwhile, a #BoycottSiriusXM hashtag began to make waves on Twitter.