Andrei Kostitsyn is being reunited with his brother Sergei in Nashville.
The Montreal Canadiens dealt the winger to the Predators for a second-round pick in 2013 and a conditional fifth-round selection ahead of the NHL's trade deadline.
Andrei Kostitsyn is earning $3.25 million and will become an unrestricted free agent July 1. He's struggled recently and has 12 goals and 24 points in 53 games this season.
"We've been watching him for a long time," said Predators assistant GM Paul Fenton. "He's a very high-end, top-skilled type of player. Just getting him to play when he wants to play has been the knock on him.
"We think with the insulation we have with our players that we'll be able to do that."
The Kostitsyn brothers played together with the Habs from 2007 to 2010.
The conditional pick Montreal sent to the Predators is one they acquired in the Hal Gill trade last week.