Princess Charlene poses after the arrival of the Riviera Water Bike Challenge in support of the Princess Charlene of Monaco Foundation, in Nice, France, June 4, 2017. (Photo by Eric Gaillard/Reuters)

Marek Jama performs during the gala of the 41 st Monte- Carlo International Circus Festival in Monaco on January 25, 2017. (Photo by Eric Gaillard/AFP Photo)

Children with balloons play beside the statue of British comedy legend Eric Morecambe on January 16, 2012 in Morecambe, England. According to scientists January 16, 2012 was “Blue Monday”, the most depressing day of the year. (Photo by Christopher Furlong/Getty Images)

A woman wearing a face mask to protect against the spread of COVID-19 walks past a mask clad Acrocanthosaurus display at the Witte Museum, Thursday, January 28, 2021, in San Antonio. (Photo by Eric Gay/AP Photo)

A reveller dances during “Lou Queernaval” parade, the first lesbian, gay, bisexual and transgender (LGBT) carnival in France, as part of the Carnival of Nice February 19, 2016. (Photo by Eric Gaillard/Reuters)

A 3D printing professional wears his T-Rex skull creation during a 3D printing show in Brussels, Belgium, October 18, 2015. (Photo by Eric Vidal/Reuters)

With more than 40,000 followers on Twitter and 26,400 fans on Vine, it looks like Marutaro the hedgehog from Japan is one of the most popular hedgehogs on the Internet. And as his owner keeps on posting Marutaro’s pictures online daily, Marutaro’s popularity continues to grow. There are hundreds of cute photographs and videos of this little fellow, but the ones with little paper cut-out faces are probably the cutest. As Marutaro lies on his back, his owner gives him a variety of silly expressions and smiles. The 20 best of them will definitely boost your mood!