Rihanna arrived at Hollywood's Bar Delux wearing a racy lace top

She's only been back in the public eye for a few weeks since her alleged attack by on/off boyfriend Chris Brown.

But it appears Rihanna is throwing herself back into her social life with aplomb as she enjoyed another night out partying in Hollywood last night.

Clearly enjoying the fact she can now go clubbing legally in the U.S. after turning 21 in February, Rihanna joined friends at LA hotspot Bar Delux.

Risque: Rihanna arrived at Hollywood's Bar Delux wearing a racy lace top and stripy skirt

The Bajan singer caused a frenzy on Thursday when she arrived at the venue in a sexy see-through lace top and stripy black skirt.

She was accompanied by her bodyguard and her blonde female personal assistant.

Paparazzi clambered for a shot of the Umbrella singer, who just managed to protect her modesty with a skin-coloured bra.

The young star kept her new tattoo covered up, which emerged on the internet earlier this week.

Tattoo artist BangBang posted photographs of the singer showing off her new gun tattoo under her right arm on his website.

Serious: Despite being out to enjoy herself, Rihanna looked unhappy as she arrived at the club

BangBang explained: 'She has a necklace that I love that I saw about a year ago. I was like, "You should get a little gun tattooed on you."

'Then when I was in L.A. to tattoo her friend - she brought me there for his birthday as a gift to him - she wanted to get a tattoo and I brought the gun out again and I stuck it on there and she loved it.'

Rihanna's decision to glamorise violence with a gun tattoo comes as surprise for someone who was the victim of a domestic assault.

She was allegedly beaten up by 19-year-old Brown during a heated argument in his sports car the day before the Grammy Awards.

The couple, who reconciled after the incident despite his domestic battery charges, are said to be on a break.

Brown is expected to be back in court for an arraignment on April 6.

Legal experts have claimed that the case against Brown could hinge on Rihanna's co-operation.

Her spokesperson has previously insisted that she will 'do everything that the law requires her to do'.