The 34-year-old former Nottingham Forest, West Ham United and Newcastle United striker, has been handed the number 9 shirt at Victoria Park and was at the ground this afternoon to pose in his new shirt.
Harewood had been a free agent since his release from Bristol City a fortnight ago and Pools boss Colin Cooper has moved quickly to add his former Nottingham Forest team-mate to the squad.
The deal was confirmed this afternoon.
He will train with his team mates at Maiden Castle tomorrow and go straight into the squad for the Sky Bet League Two match away to Fleetwood Town on Saturday.