Multidisciplinary artists are aplenty these days, but few have managed to establish successful careers as both actors\u00a0and\u00a0singers. But these Musical Performers Can Act:\u00a0CLASSIC TV CAMEOS BY MUSICIANS To commemorate the time we spent listening to our favorite thespians (agonizingly) belt it out after hours, DYR pays it forward with a countdown of some of the worst musical crossovers all time. Don\u2019t you dare touch that mute button! William Shatner https:\/\/youtu.be\/lul-Y8vSr0I Shatner\u2019s spoken-word rendition of Bob Dylan\u2019s \u201cMr. Tambourine Man,\u201d featured in his 1968 album\u00a0The Transformed Man,\u00a0still makes us laugh\u2014though we\u2019re not sure whether he meant the performance to be comical. At least it was better than his cover of Queen\u2019s \u201cBohemian Rhapsody,\u201d which even NPR deemed as \u201cvery weird.\u201d Eddie Murphy https:\/\/youtu.be\/iWa-6g-TbgI The comedian was on top of the world in the 1980s, starring in hit film after hit film. But Murphy\u2019s box-office success wasn\u2019t enough, apparently, as the actor spent the decade moonlighting as a singer, too. He released a couple of albums and had two hit singles, "Put Your Mouth on Me\u201d and "Party All the Time," the latter produced by Rick James and named among the worst songs of all time by VH1. Keanu Reeves https:\/\/youtu.be\/qNOIZlQVftI The Matrix trilogy grossed more than $1 billion, which afforded Reeves some time away from the movies to focus on his true passion\u2014playing guitar with his band, Dogstar. Despite leaving the grunge band in the early \u201990s to pursue his film career, Reeves willingly returned to the era of flannel, alternative rock and long hair, much to our discontent. Russell Crowe https:\/\/www.youtube.com\/watch?voziN0ZHMwF8 Five minutes into Les Mis\u00e9rables and we knew Crowe was among the actors who should stay far away from all musical projects. Sadly, in his off time, Crowe is entirely devoted to playing with his bands, 30 Odd Foot of Grunts, the Ordinary Fear of God and others with equally unfortunate names. Judging by this clip, Chrissie Hynde should\u2019ve \u201cpretended\u201d she was busy when Crowe called for a duet. Jada Pinkett Smith https:\/\/youtu.be\/regofIzNFvE If Jada ever wanted to upstage husband Will with a musical career of her own, she would have to do better than becoming lead singer of the rock band Wicked Wisdom. Jennifer Love Hewitt https:\/\/youtu.be\/lvki5NsTro4 The squinty-eyed actress\u2014and notorious serial monogamist\u2014has dabbled in music throughout most of her acting career. "How Do I Deal,\u201d recorded for the I Still Know What You Did Last Summer soundtrack, and \u201cBareNaked,\u201d produced by singer Meredith Brooks, were among her chart-topping hits. But after 2002, Hewitt took her efforts abroad, where they appreciate that sort of second-rate talent. David Hasselhoff https:\/\/youtu.be\/yT5rqKMaHAg Now here\u2019s a man who approaches every single job with shameless abandon. Cases in point: His roles as a vigilante crime fighter with a talking car, a bronzed lifeguard in Southern California, and a suave pop singer\u2014even if for the last one he was playing himself. Fortunately, the actor\u2019s career has found refuge in Germany, where everyone seems to have drunk the Hasselhoff Kool-Aid. Don Johnson https:\/\/youtu.be\/Uth0Wk4xYnQ Johnson achieved his greatest fame in the 1980s playing Detective Sonny Crockett on the hit series\u00a0Miami Vice. But somewhere between fighting crime dressed in pastels on-screen and romancing Melanie Griffith off-screen, he found time to release two albums, the second of which yielded the\u00a0Billboard\u00a0hit \u201cHeartbeat.\u201d One single was all the public ever had to endure.