Peter Andre is throwing his kids a joint Mexican-themed birthday party.

The 'Mysterious Girl' singer wasn't able to be at his daughter Princess Tiaamii's fifth birthday party last week as she was with her mother, Peter's ex-wife Katie Price.

So instead he has organised a massive fancy-dress Celebration for Princess, her brother Junior, six, and his 10-year-old stepson Harvey to make up for it.

Speaking in his weekly column for new! magazine, Peter revealed: ''Princess turned five last week but, unfortunately, I wasn't with her on her birthday as she was with her mum.

''However, I'm putting all my energy into the joint birthday party I'm having for all three kids in the next week or so. I've decided on a Mexican theme.''

Pete - who shares joint custody of the kids with his ex-wife Katie Price - revealed the theme was inspired by his new favourite band who come from Mexico.

The TV star explained: ''I've decided on a Mexican theme because I've discovered this Mexican band I love and I want them to come and play! They're called the Mariachi Doritos and they're from the Doritos adverts.

''I love them and I want a whole Mexican theme to tie in with them. We'll have Mexican food and I'll dress the kids up as little Mexicans. It's going to be amazing!''