RELATED VIDEO: Justin Bieber Serenades Wife Hailey Baldwin Outside Buckingham Palace with One of His Songs Earlier in the day, Mallette wished her new daughter-in-law a happy birthday with a sweet ...

The singer turns 22 today. VALERIE MACON/AFP/Getty Images In news from the "man, I feel old" files, Justin Bieber celebrates his 22nd birthday today and Twitter is reacting accordingly.

"happy birthday," she wrote, alongside a white-heart emoji. "love you tons." Justin Bieber Says He's Going to Teach Son Jack Blues to Skate as 'Soon as Possible': 'It's Never Too Early' A few of ...