Seriously, how cute is Bruno Mars? The 'Grenade' hitmaker is celebrating his 26th birthday today, Oct. 8, and we are celebrating his career and overall adorableness with 26 cute Bruno Mars pictures.

Bruno Mars was born Peter Gene Hernandez and was raised in Honolulu, Hawaii with his parents and five siblings. The singer-songwriter, who is of Filipino and Puerto Rican descent, was given the nickname "Bruno" by his father when he was a toddler. His father, who is originally from Brooklyn, N.Y., believed little Bruno resembled professional wrestler Bruno Sammartino, since baby Bruno was chubby just like the wrestler.

It's no wonder where Mars got his musical talent from, since his father was a musician -- he also inherited his swoon-worthy dance moves from his mother, who was a hula dancer. At age 4, Bruno began performing in his family's band, the Love Notes (check out a photo of Bruno performing as a kid by clicking here), and also gained notoriety for his impressions of classic stars like Elvis Presley.

Nowadays, Mars is a full-blown superstar, with his own signature style of feel-good, doo-wop-inspired pop music. His music isn't the only old-school element surrounding Mr. Mars, however -- his style channels the Rat Pack era, as he is usually seen rocking dapper suits and his trademark pompadour hairdo. Mars is straight-up adorable in every sense of the word, from his great musical talents to his lovable demeanor and dreamy smile.

Flip through these 26 Bruno Mars pictures on the singer's 26th birthday to celebrate the career and cuteness of this mega-watt pop star.