After "What Do You Mean?" hit the No. 1 spot at Billboard Hot 100, Justin Bieber and Floyd Mayweather Jr., who has retired from his glorious boxing career having the 49-0 record, jetted to Bora Bora.

During a karaoke night on Saturday, TMZ was told that the duo stopped by their hotel's bar. Bieber decided to sing his current number one single, afterwards he played the piano and sang The Beatles' "Let It Be."

Other than videoke, Bieber and Mayweather also spent some of their early-morning vacation activity counting loads of money. The video uploaded on the mayweatherunlimited Instagram account, flaunted the undefeated boxing champ, together with the famous pop star, counting loads of cash.

A post from Mayweather's Twitter account came in afterwards, where it says, "Money doesn't make me. I make money."

Earlier, Mayweather tweeted, "Enjoying the retired life #borabora."

It was followed by, "They wanna know what we have in common .... #gettinmoney @justinbieber @john."

Bieber and Mayweather's friendship dated way back in May 2012, when the Canadian singer accompanied the boxing champ to the ring before his fight against Miguel Cotto, as per Mail Online.

The last time that Bieber was in French Polynesia back in July, Gossip Cop reported that he took a photo of himself on a boat naked. He posted the snap, which featured his nude butt, on Instagram, but it was later deleted.

The report further stated that Bieber removed the snap and apologized. He explained it was intended to be a joke, without realizing that there were some "little ones" following him.