In pictures: beards return in all their facial glory

Actor Chiwetel Ejiofor, who starred in 12 Years a Slave, and Sari Mercer arrive at the British Academy of Film and Arts (BAFTA) awards ceremony at the Royal Opera House in London February 16, 2014. Suzanne Plunkett / Reuters

Spanish director Jaume Collet-Serra poses at the premiere of his film Non-Stop in Los Angeles. Fred Prouser / Reuters

Actor Brad Pitt with wife Angelina Jolie at the British Academy of Film and Arts (BAFTA) awards ceremony at the Royal Opera House in London. Suzanne Plunkett / Reuters

Film director Steven Spielberg. Chris Pizzello / Invision/ AP

British actor Tom Hardy on the red carpet for the 2014 EE British Academy Film Awards ceremony. FACUNDO ARRIZABALAGA / EPA

Director Steve McQueen arrives for the London Critics' Circle Film Awards in London on February 2, 2014. Luke MacGregor / Reuters

US film producer Harvey Weinstein arrives for the Burberry Prorsum show during the 2014 Autumn / Winter London Fashion Week in London. Carl Court / AFP

Actor Ralph Fiennes speaks on the BBC's Andrew Marr Show. Jeff Overs / Reuters

Ben Affleck arrives at the premiere of To The Wonder in Los Angeles. Matt Sayles / AP Photo

Actor Forest Whitaker promoting the movie La Voie De L'Ennemi (Two Men In Town) at the 64th Berlinale International Film Festival in Berlin on February 7, 2014. Thomas Peter / Reuters

Actor Omar Metwally poses at the premiere of his film Non-Stop in Los Angeles on February 24, 2014. Fred Prouser / Reuters

Members of US band ZZ top, left to right, Dusty Hill, Billy Gibbons and Frank Beard. Diego Azubel / EPA

Actor Gary Oldman poses with his award the "Dilys Powell Award for Excellence in Film" award at the London Critics' Circle Film Awards in London on February 2, 2014. Luke MacGregor / Reuters

American singer-songwriter Kenny Loggins promoting his new album Finally Home For Christmas released by his band Blue Sky Riders, in New York. Victoria Will / Invision / AP

Actor John Hurt arrives for the London Critics' Circle Film Awards in London on February 2, 2014. Luke MacGregor / Reuters

British actor Michael Sheen arrives on the red carpet of the 2014 EE British Academy Film Awards Gala Dinner held at the Grosvenor House Hotel in Central London on February 16, 2014. Will Oliver / EPA

Actor Joaquin Phoenix (L) arrives for actor Philip Seymour Hoffman's funeral at St Ignatius church in the Manhattan borough of New York Fon ebruary 7, 2014. Carlo Allegri / Reuters

Left to right, actor Christian Bale, director David Russell and actor Bradley Cooper arrive at the British Academy of Film and Arts (BAFTA) awards ceremony at the Royal Opera House in London on February 16, 2014. Suzanne Plunkett / Reuters

Cast member Morgan Freeman attends the premiere of the film The Lego Movie in Los Angeles on February 1, 2014. Phil McCarten / Reuters

Ron Howard arrives at the British Academy of Film and Arts (BAFTA) awards ceremony at the Royal Opera House in London on February 16, 2014. Suzanne Plunkett / Reuters

Actor Will Smith at the 2012 Governors Awards at the Ray Dolby Ballroom at Hollywood & Highland Center in Hollywood, California on December 1, 2012. Krista Kennell / AFP

Take a look at some of the most famous beards after the gradual re-emergence of facial hair, and a subsequent transformation of its image in the workplace.