Rihanna said she is attending one of the biggest celebrity weddings of the year between Katy and Russell Brand, which will reportedly take place next month.
Behind the shoot for her So Kodak advert shoot, the Barbadian beauty told Et.com: 'I am going.
'It is in India, I am excited about that because I have never been there, I am just excited to see her get married - I am excited to see her dress as she won't tell me what it is.'
The 22-year-old became friends with the Californian Gurl when they met at an awards show and found out they had a similar sense of humour.
The Rude Boy singer said: 'From there, she just seemed to be a down-to-earth person.
'...With Katy, she is just such a free spirit, she has no edit button at all.'
Rihanna added that there are plans for her and the 25-year-old to work together in the future.
She said: 'We want to get in the studio and make something for this album, or maybe for her re-release but we want to do something together for sure.'