Rihanna & Jay-Z Rack Up $12,000 Bar Bill!

Pop beauty Rihanna didn’t seem too bothered by former beau Chris Brown’s public ‘mea culpa’ over assaulting her – after she and Jay Z ran-up a $12,000 bar bill in London Tuesday night.

The famous pair hit club Vendome and splashed-out on countless bottles of Dom Perignon champagne along with vodka for two tables of friends.

The duo sat in a special VIP area and RiRi was having a blast partying with her friends while sporting her new Mohawk inspired hair-do.

“Everyone was trying to get into their area to get a glimpse of them but the security was so tight, many were left standing-by a roped area trying to sneak a peek,” one insider told the UK’s Daily Mail newspaper.

Bad-boy Brown posted a public apology to Rihanna on his website Tuesday  – but it didn’t seem to be on her mind

The onlooker added: “As she left the VIP area she looked in high spirits – but she kept her head down as she made her way out of the club at 3am, avoiding questions from fans as to how she was doing.”

Jay Z’s famous wife Beyonce did not attend the party at Vendome.