Portsmouth are hoping to lift the FA Cup trophy by beating Cardiff City in the final, and 11-year-old Ben is actually going to Wembley in London to see them try and do it!
Ten-year-old Oliver thinks Portsmouth are going to win because they've got great players, and they're in a higher league than Cardiff.
Lilian and Tilly are really excited - they think Portsmouth are going to win 2-1.
Hamish is excited about the match as well, but he's also a bit nervous. "Cardiff City have beaten quite a few teams in the Premier League, hopefully they won't do it again," he said.
Greg's really looking forward to the match. He said: "I think they're going to do really well. Come on Pompey!"