The Netherlands international put pen to paper on a long-term contract with the Reds at the AXA Training Centre on Friday after successfully passing a medical.
Speaking to Liverpoolfc.com for the first time, Frimpong said: “It went quite easy. Liverpool came and said they had interest, and obviously for me it was a no-brainer.
“For me, it was like, ‘Whatever you guys do, just get this done’, [speaking to] my agents: ‘Just get this done.’
“Liverpool fans, I’m going to give my all, my energy, my work-rate and hopefully we can win together, we celebrate together, get everything together.
“I’m just excited to be here. Thank you guys for accepting me and I won’t let you guys down and I’ll give you the energy that you guys want.”
