Rihanna's lawsuit against Topshop is heading to court.

The 24-year-old singer decided to take legal action against the UK High Street chain after they sold T-shirts bearing her imagine without her consent and things are now heading to Her Majesty's High Court of Justice in London this summer after eight months of unsuccessful negotiations.

If she were to win her case over the clothing - which holds a snapshot from her 'We Found Love' music video - Rihanna's victory would be a ''groundbreaking'' decision made by the British court as the UK doesn't hold right of personality, which means any purchased image can be used unless trademarked.

A legal source told WWD the musician's Reed Smith lawyers from will have to prove the T-shirt in question gives the impression Rihanna is ''endorsing'' the clothing, but spokespeople from both companies have yet to comment on the situation.

Meanwhile, an insider in the proceedings claims the 'Diamonds' hitmaker is not suing Topshop for $4.6 million as previously stated.

Rihanna - who is currently working on her own collections with rival British retailer River Island - felt ''offended'' by the care-free attitude of Sir Philip Green's company and has spent a massive amount in legal fares so far.

A source previously said: ''What is most offensive for Rihanna is that they basically told her, 'Go to hell. We don't care; we are going to continue selling you.' They offered her $5,000 and said they don't care...

''Even though the UK laws don't protect the artist, she has decided to move forward and sue Topshop. She has spent almost $1 million in litigation at this point. She says it's the principle, and wants to make a statement about it. They are taking advantage of artists. It is just exploitation. What they are doing is wrong.''