Jason Holder sent a warning for West Indies' World Cup opponents ahead of their tournament opener against Pakistan at Trent Bridge, saying his team will be playing with a smile on their faces.
The two-times world champions had to battle hard to qualify for the World Cup, reaching the tournament through a qualifying competition in Zimbabwe last year.
Since then they have found rhythm, with key batsmen Chris Gayle and Shai Hope scoring runs, squaring a home series against a top-ranked England side couple of months back.
"One thing I like coming into this tournament is that every player is in a good frame of mind. Everybody is playing with a smile on their face, and I think that's how we play our best cricket," said Holder, captaining in his second World Cup.
"We're fearless, we enjoy what we're doing and we enjoy one another's company. I can safely say within the group we've got that."
Holder said Hope's consistent run-scoring was a major boost for his side.
"Shai has been carrying some form for a long time in the limited-overs format, and he's really confident," said Holder of the 25-year-old batsman.
"I think he's worked out pretty much his method of scoring in this format. As I say, it's been very, very consistent, which as a group we've probably lacked in the recent past."
Holder played down all the hype around his power packed batting line-up, tipped to possibly break the 500-run barrier in ODIs for the first time.
"Look, I don't want to sit here and try to pre-determine what's going to happen, but I just think in this situation we play a normal cricket game," said Holder, whose team were involved in a world-record 46 sixes in a match against England in Grenada.
Holder warned his team against complacency, even though they are facing a Pakistan team who have lost their last 10 ODIs.
"We just want to be as professional as we possibly can, not take anything for granted. I don't think we're in a position to take anything for granted," said Holder.