Lansbury, who played under Pearce for the Under-21's, believes that his arrival will bring a new lease of life to the club.
"The lads are looking forward to Stuart coming in, it will be a fresh start for everyone," he told the Daily Star.
"At the moment we are still trying to nick a playoff spot so hopefully there will be a bit of momentum for when Stuart comes in. He's a great man manager and he's a legend here so hopefully, he will get the best out the players.
"The fact that he is held in such high regard here by the fans I think is a plus. I've worked with him before and coming back here will give the fans and the players a lift and maybe that is what we need."
Pearce, who played for Forest between 1985 and 1997, will officially take charge on July 1.