Justin Bieber has taken to Twitter to apologize for reportedly showing up two hours late to his show at the O2 Arena on Monday night (March 4) in London, England.

According to Us Weekly, the 19-year-old singer was booed by fans after hitting the stage over two hours after his scheduled time.

Justin wrote that “it hasn’t been easy with the press” since he’s been overseas, so he wanted to clear up the confusion.

“last night i was scheduled after 3 opening acts to go on stage at 935 not 830 but because of some technical issues i got on at 10:10..so…” he tweeted. “i was 40 min late to stage. there is no excuse for that and I apologize for anyone we upset. However it was great show and Im proud of that”

Click inside to read the rest of Justin‘s explanation… More Here! »

Justin Bieber listens to the screaming crowd as he performs in concert at the O2 Arena on Monday (March 4) in London, England.

The 19-year-old singer recently explained what lead to him having the “worst birthday.”

PHOTOS: Check out the latest pics of Justin Bieber

“The funny moment when people believe I brought underage people to a club,” he shared on Instagram. “U think Will [Smith] is letting his 14 year old in a club, I don’t think so.. 2nd I love how the club wanted to give the press another reason to why we didn’t stay at their weak ass club so they wouldn’t look bad for me walking in and right back out..i said m “worst bday” but that was due to dummies pushing over my fans and being overly aggressive. Btw it wasn’t the worst bday cuz all my friends from back home flew in I was just mad in the moment.”

50+ pictures inside of Justin Bieber performing in London… More Here! »

Justin Bieber wears a bright pair of sneakers as he arrives for dinner at Mint Leaf Restaurant & Bar on Sunday (March 3) in London, England.

Later in the night, the 19-year-old singer was seen heading into the Vue Cinema for a movie with some pals.

PHOTOS: Check out the latest pics of Justin Bieber

“Nottingham thanks for being there for me to tonight. Love u. #BELIEVEtour,” he tweeted after his concert.

Justin added, “I see and saw all the posts from around the world. U got me smiling. Love u. Thank u. #beliebers.”

Justin Bieber pops up his hood and flashes double peace signs while arriving back to his hotel on Saturday night (March 2) in London, England.

The 19-year-old entertainer took some pictures with his waiting fans before heading inside for the night.

PHOTOS: Check out the latest pics of Justin Bieber

“Nottingham thanks for being there for me to tonight. Love u. #BELIEVEtour,” Justin wrote on Twitter before getting some sleep.

Earlier that night, Justin was spotted wearing the same Billionaire Boys Club hoodie while heading to the Capital FM Arena in Nottingham.

15+ pictures inside of Justin Bieber… More Here! »

Justin Bieber wears a Billionaire Boys Club sweatshirt while leaving his hotel on Saturday afternoon (March 2) in London, England.

The newly 19-year-old was greeted by a large group of screaming fans as he made his way to his tour bus. Justin is headed to Nottingham for a show at the Captial FM Arena!

PHOTOS: Check out the latest pics of Justin Bieber

The night before, Justin and his longtime pal Jaden Smith celebrated his birthday together with a night out at Cirque Du Soir.

10+ pictures inside of Justin Bieber… More Here! »

Justin Bieber heads back to his waiting car surrounded by security after a night out at Cirque Du Soir in London on Friday night (March 1).

The 19-year-old musician celebrated his birthday with pal Jaden Smith and rumored girlfriend Ella-Paige Roberts Clarke.

PHOTOS: Check out the latest pics of Justin Bieber

“Gonna be fun tonight. Thanks to everyone for all the birthday wishes. 19!” Justin tweeted earlier in the day before adding later that night, “Worst birthday.”

Just before his Cirque Du Soir stop, Justin stopped by Selfridges for a bit of shopping and had dinner at Mint Leaf.

15+ pics inside… More Here! »

Justin Bieber rocks gold gloves as he takes the stage for his show on Thursday night (February 28) in Birmingham, England.

The 19-year-old singer is currently abroad on the European leg of his Believe tour.

“gonna chill and get ready for this show. last show as an 18 year old,” he tweeted.

PHOTOS: Check out the latest pics of Justin Bieber

Later that night, Justin was spotted heading into BLC nightclub to celebrate his 19th birthday with friends.

30+ pictures inside of Justin Bieber performing for fans in Birmingham… More Here! »