The Hoops picked up a draw against the Hibs in which the Lennon’s men looked completely dull.
Following the match, Lennon expressed his dismay over the result as he admitted that his players were not up to their level.
Forrest has now backed the Northern Irish manager ahead of Kilmarnock clash.
He said, (h/t The Sun)
“But that hunger is still there and he still demands performances in training and games.
“I think he reminded us last weekend he hasn’t mellowed that much!
“He has standards and if he’s not getting them he’ll let the boys know.
Forrest, 27, is currently having a great campaign at Park Head, bagging 14 goals and 9 assists across all competitions.
Furthermore, his goals in the Old Firm derby and Scottish Cup semi-finals were highly praised by the Park Head fans.
The Scottish winger made his debut during Lennon’s spell at Celtic Park years ago.
He also praised Lennon’s adaptability to the club.
He’s settled right back in so quickly, a new face, but someone who knows the club inside out. It made the transition very easy.
The makeshift manager hasn’t lost a game since taking charge midway through the season.
He has garnered 6 wins to his name that include last month’s derby win and qualification into the Scottish Cup finals.
Though there are many names linked with the Celts, regarding their next full-time manager, Lennon remains the favourite for the job.
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The Bhoys will be facing Hearts in the Cup final next month with hopes of winning a domestic treble.