Shea Weber notched a goal and an assist while Erat and Jordin Tootoo added tallies for the Predators. Netminder Dan Ellis stopped 30 shots in Nashville's win as both teams headed into the Winter Olympics break.
Weber's one-timer from the high slot tied the game 3-3 with 7:43 to go in regulation, sending the contest into a scoreless overtime period.
Crosby registered a goal and an assist for the Penguins while Brooks Orpik and Matt Cooke each added a tally as Pittsburgh limped into the break by losing four of its last five.
Notable deaths of 2014 [PHOTOS]
Michael Sam cut from the Dallas Cowboys