10 musicians who appeared in films and weren't terrible The Coen Brothers' latest film, 'Inside Llewyn Davis' stars Oscar Isaac as a young folk singer in 1960s New York. Oscar Isaac and Justin Timberlake in a scene from film "Inside Llewyn Davis." JUSTIN Timberlake is back on screens in Inside Llewyn Davis, threatening to possibly derail a Coen brothers' film with pop star mannerisms, but actually adding to an already excellent film with a downplayed, gently funny cameo. The boy can act. The path of musicians to screen can be horrible (anything involving Mariah Carey except Precious; everything involving DMX) but there are some who ace the transition. N.B. This AskMen list discounts actors who also sing, like Will Smith or Jennifer Lopez. Because that's cheating. Eminem Eminem raps his heart out in "8 Mile." How everyone mocked when the most successful white rapper since Snow decided to go into movies, particularly with 8 Mile, a movie about a poor white boy who dreams of becoming a rap star. Way to push yourself, dude. Then the movie came out and was not only one of the great music films but also showed Eminem could act as well as he rhymed. And then he won an Oscar - sure, for the theme song and not his performance, but it still counts. A pity he's done nothing since. Mandy Moore Mandy Moore in scene from film "American Dreamz." Anyone heard from Mandy lately? If you actually remember any songs from Mandy Moore's pop career then shame on you. She was one of the splurge of pretty blondes who bounced along in the wake of Britney Spears, whispering auto tuned ditties about cute boys and obvious, but incredibly coy, euphemisms for sex. Since she quietly put all that behind her, she's become a successful actor, opting for small, odd movies rather than usual pop star fluff. Great as a furiously religious bitch in Saved! Equally interesting in Romance and Cigarettes and American Dreamz. Mos Def Bruce Willis as Det Jack Mosley and Mos Def as Eddie in scene from 2006 film '16 Blocks' Source: News Limited This man has taste. There's almost nothing he's appeared in, even the films that didn't turn out so well, that you'd call a boring choice. He holds his own in dark little projects like Monster's Ball and The Woodsman, then is equally at home in action fluff like The Italian Job or 16 Blocks, or oddities like The Hitchhiker's Guide To The Galaxy or Be Kind Rewind. Why is this man not a bigger star? Also, he wears hats really well. Cher Cher And Eric Stoltz in scene from film 'Mask'. One of only two people on this list with an acting Oscar, and the only one to have won in a leading category, Cher's only appeared on-screen in twelve movies, but they've tended to be memorable. Silkwood, Mask, The Witches of Eastwick, Mermaids. They're films that people remember, largely because she's very bloody good in them. Then of course there's Moonstruck, for which she won an Oscar and managed to balance out the wilder excesses of Nicholas Cage. Was also a stripper in musical Burlesque, which was a right old barrel of sh**, but everyone has off days. Frank Sinatra Debbie Reynolds with Frank Sinatra in 1955 film "The Tender Trap." Sinatra was classic as a singer, as compelling in his final years as he was in his youth. As an actor he had stretches of okayness (it's a word) and a brief flash of excellence in the 50s. He was in Oscar-winning form in From Here To Eternity, but even better as a junkie in The Man With The Golden Arm. In Guys and Dolls he easily outdid Marlon Brando on singing - a mouse with whooping cough could have outdone Brando on singing - but also trounced him on charisma, then was equally charming in High Society. After that it got gradually less interesting, with more indulgent star vehicles like Ocean's Eleven, but for a spell there he was untouchable. Whitney Houston Kevin Costner and Whitney Houston in 'The Bodyguard'. The movie you're in doesn't have to be good for you to be good in it. Houston was never in a great movie in her life, but in The Bodyguard she had movie star quality (if anyone tries to tell you The Bodyguard was a legitimately great movie then please alert the authorities). Playing the biggest music star in the world may not have been the greatest stretch, but she was every bit as good in the moments where she had to be a real, frightened person. If she'd had more interesting taste, rather than mainly going for projects that just worked up to her belting a ballad over the end credits, she might have been as lauded for her acting as her singing. Courtney Love Courtney Love with Woody Harrelson in scene from film "The People vs. Larry Flynt." Oh Courtney. Courtney, Courtney, Courtney. Her nutso behaviour in her personal life will be her most memorable performance, unfortunately overshadowing a string of very solid appearances on screen. The standout is obviously her turn in The People Vs. Larry Flynt, playing the wife of the porn magnate who slips into drug addiction and depression, but she was also strong opposite Jim Carrey in Man On The Moon and in 200 Cigarettes. Those days seem over now, sadly. Her last credit was in Straight To Hell Returns. No, us neither. David Bowie Ben Stiller with David Bowie and Owen Wilson in scene from film "Zoolander." Well obviously for Labyrinth alone. Bowie's taste in film roles is as eclectic as his taste in music. He's cropped up in films you'd never expect, such as playing electrics wizard Nikola Tesla in The Prestige or Pontius Pilate in The Last Temptation of Christ. Then he's also played the roles you'd absolutely expect, like an androgynous alien in The Man Who Fell To Earth, or Andy Warhol in Basquiat. He's also been in some dreadful stinkers, like Absolute Beginners, but you're always glad to see him. And of course, there's that cameo in Zoolander. Art Garfunkel Art Garfunkel is famous for his partnership with Paul Simon. He gets a mention really on the strength of one film. In Mike Nicholls' Carnal Knowledge he's pitted against the mighty Jack Nicholson as one of two friends feeling their way ham-fistedly through the mysteries of women. He has to be funny and tragic, old and young. He picked a string of duffs for his subsequent attempts at acting, but sometimes you only need one. Diana Ross Diana Ross performed at the US Open in 2006. Only three movie credits to her name, yet they cover quite a spectrum. There's the absolute stinker, Mahogany, a movie directed by Berry Gordy, the founder of Motown, about a aspiring fashion designer (who on earth cares about a singer playing a fashion designer?) Then there's the cult hit The Wiz, which redraws The Wizard of Oz with an all-black cast and a New York-y setting. But then there's Lady Sings The Blues, her acting debut, in which she plays Billie Holliday and knocks it way, way out of the park, earning herself an Oscar nomination. This article originally appeared on AskMen.