New signing Makoun trains for Villa ahead of away date with Wigan
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Makoun signed for Villa from Lyon just over a week ago but the amiable midfield couldn't get straight into the action because of the need for international clearance.
But, having received the necessary documentation as well as permission from the FA and Premier League, the Cameroon star is now in line for a debut at the DW Stadium.
He was outdoors with the likes of Ashley Young, Kyle Walker, Darren Bent and Emile Heskey as he geared up for the tough assignment against the Latics.
Houllier has revealed Makoun will be in the provisional 20-man squad that travels to the game but we will all have to wait to see if he starts.
He has already endeared himself with fans after being introduced to the crowd before the Manchester City game.
All four sides of the stadium cheered as the popular Cameroon international made his way out of the tunnel and on to the illustrious playing surface.
Makoun was already well on his way to becoming a cult hero after fans commented positively on the flashy jumper he wore in his exclusive AVTV interview on signing day.
But the all-action midfielder strengthened his appeal with a real rip-roaring entrance on to the field before the game began.
Makoun, who will wear number 17, is expected to do well, according to new boss Houllier.
He said: "Jean is a player who can play in front of the defence as a sitter and defensive midfielder or as a box-to-box midfielder. He has several assets about his game. He is also a very experienced player because he played Champions League football with Lille and Lyon.
"He is a nice guy too. I think he will settle well in the dressing room."
Makoun can't wait to get going now.
He added: "I am thrilled to be here at Aston Villa.
"I am really, really happy and very proud to have joined a great club and I can't wait to get started now everything has been finalised.
"Villa really want to do well and really want to achieve something, so I am really excited to be joining."
The only place to hear from Jean II Makoun is in our exclusive AVTV with him - click here to access.
Remember AVTV is 99p for 14 days.