Pop star Justin Bieber tweeted a sweet photo of him and his mother Pattie Mallette on Mother's Day.

The 20-year-old captioned the photo: "My mom has taught me how to love, forgive and believe. She is my everything."

Prior to that, he posted a series of tweets: "I love my mamma! @pattiemallette this is our day. Happy Mother's Day. I love you." In a tribute to all mother, he also tweeted: "Happy mothers day mama and all the other Amazing mothers out there :)"

Bieber also posted another photo of himself as a child with the caption: "Happy Mother's Day to my amazing mom @pattiemallette. I love u with all my heart!!"

Bieber and his mother enjoyed Mother's Day by going to a Clipper's game today. Malllette also provided her son's fans on their day out togethe with a photo of the two at the game. "Enjoying Clippers game w my favorite man for Mother's Day. Love you @justinbieber xoxo," she wrote.