The Danish royal family marked Prince Nikolai of Denmark's 17th birthday with two new photos of the handsome teenager. In the two lovely snaps marking the Aug. 28 milestone, Prince Joachim's eldest son from his first marriage to Alexandra, Countess of Frederiksborg, poses with his brother Prince Felix and on his own - and looks very grown up.

The photos, which were taken by photographer Steen Brogaard, were shared on the Palace's official website as well as all their social media channels.

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The prince was given a special birthday shout out on Sunday on the Danish royals' official Facebook page. "H.H. Prince Nikolai turns 17 years old today. On the occasion of his birthday we have taken new pictures of the prince," the image was captioned.

The prince, who is rarely in the spotlight, made an appearance in April when he stepped out with his family for his grandmother's Queen Margrethe II 76th birthday celebrations. Nikolai waved from the balcony as he stood next to his father, his father's wife Princess Marie of Denmark, his brother Felix and his two half-siblings Princess Athena, four, and Prince Henrik, seven.

In 2015, Nikolai made a solo appearance on the Danish radio show P4 Weekend as a guest DJ, and talked about what he enjoys listening to, including "deep house music." The show's lead DJ, Maria Hollænder, let fans in on her reason for having the royal on the show. "Prince Nikolai is not usually someone who stands up and makes statements to the press," she captioned the photo of her and Nikolai. "But when it comes to music, the young prince has so much passion that he chose to share his opinion."