Sorry! Justin Bieber blasts penalty over the crossbar then scores another as he takes part in Barcelona training session with Neymar and Co

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Lionel Messi, Neymar and Luis Suarez are often the ones in the limelight but it was Justin Bieber who stole the show on a visit to Barcelona's training base on Monday.

The singer is in town for his current European tour; with the What Do You Mean hit-maker preparing to perform at the city's Palau Sant Jordi arena on Tuesday night.

Ahead of the performance, the 22-year-old pop superstar made an appearance at Barcelona's training centre where he met the attacking trio.

(Left-right) Neymar, Luis Suarez, Justin Bieber and Lionel Messi pose for a picture on Monday

Pop superstar Bieber (right) poses with Barcelona's Brazilian forward Neymar (left)

Barcelona's Croatian midfielder Ivan Rakitic poses with the 22-year-old Canadian singer

Bieber, wearing a yellow shirt and dark blue thermal trousers, is tackled by Neymar on Monday

And it was a day to remember for Bieber, who was put through his paces by Brazil duo Neymar and Rafinha ahead of the club's Champions League tie against Celtic.

In videos uploaded on the European giants' Snapchat account, Bieber can be seen taking part in various drills as Luis Enrique's side gear up for Wednesday's clash.

The session begun with the As Long As You Love Me star going in between the goalposts, but Rafinha easily beating him with a stunning left-footed shot.

Bieber then had the chance to show his penalty prowess and after blasting one over the bar he came up with the goods by firing his low strike into the bottom corner.

And it was too late to say sorry after he showed tremendous footwork to bamboozle Neymar, who was playing in goal, and score an impressive goal.

And the fun continued when he posed for a picture with Brazilian forward Neymar - a snap which was photobombed by Rafinha. 

The session begun with the As Long As You Love Me star going in between the sticks (right)

Bieber then had the chance to show his penalty prowess and he came up with the goods

It was too late to say sorry after he showed tremendous footwork to bamboozle Neymar

Messi and Suarez, who weren't taking part in Bieber's session, then got in on the act by grabbing a picture with the man of the moment. 

Barcelona will be looking to bounce back from their Champions League defeat by Manchester City when they travel to Parkhead. 

Going into this week's round of fixtures Enrique's men are top of Group C with nine points, two ahead of second-place City. 

The What Do You Mean hit-maker is preparing to perform at the city's Palau Sant Jordi arena

Brazilian superstar Neymar cuts a frustrated figure during his side's 0-0 draw with Malaga