Hot air balloons take to the skies as they participate in the mass assent at sunrise on the second day of the Bristol International Balloon Fiesta on August 11, 2017 in Bristol, England. More than 130 balloons have gathered for the four day event, now in its 39th year and now one of Europe's largest annual hot air balloon events, being hosted in the city that is seen by many as the home of modern ballooning. (Photo by Matt Cardy/Getty Images)

Israeli soldiers fire a 155mm self-propelled howitzer towards the Gaza Strip from their position along the border in the southern Israeli city of Sderot on May 20, 2021. Israel is studying whether conditions are right to stop bombing Palestinian militants in Gaza but is preparing for “more days” of strikes if necessary, an Israeli military source said today. Diplomats stepped up efforts today toward a ceasefire to stem 10 days of deadly violence between Israel and armed Palestinian groups in Gaza as air strikes again hammered targets in the enclave. (Photo by Jack Guez/AFP Photo)

A woman sunbathes, while police patrol nearby, as a meeting of G7 leaders takes place in St. Ives, Cornwall, England, Saturday, June 12, 2021. Leaders of the G7 gather for a second day of meetings on Saturday, in which they will discuss COVID-19, climate, foreign policy and the economy. (Photo by Jon Super/AP Photo)

A damaged wooden garden house is seen amid a field of wheat following floods caused by heavy rainfalls, in Bad Bodendorf, Germany, July 18, 2021. (Photo by Wolfgang Rattay/Reuters)

A woman carries her cat as she walks near Kyiv-Pasazhyrskyi railway station in Kyiv in the morning of February 24, 2022. Air raid sirens rang out in downtown Kyiv today as cities across Ukraine were hit with what Ukrainian officials said were Russian missile strikes and artillery. (Photo by Daniel Leal/AFP Photo)

A model presents a creation from the Versace Fall-Winter 2022/2023 collection during Fashion Week in Milan, Italy, February 25, 2022. (Photo by Alessandro Garofalo/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!