"I hope to be a success and I'm motivated to do well," Benteke told Sky Sports News.
"The deal was difficult, but now I'm a player for Aston Villa and I would like to say thank you to my manager and to everyone. I will go forward for a new challenge.
"I don't know (how many goal) I will get for Villa, but I will do my best.
"The Premier League is the best in the world and it's a dream for me to come here."