Singer-songwriter Robin Thicke has admitted that Black Eyed Peas star will.i.am is more than a bit “eccentric”.

The ‘Blurred Lines’ singer is readying the release of his follow-up to the massive hit ‘Give It 2 U’, for which he enlisted the assistance of will.i.am to pen the lyrics.

Speaking with BBC Radio 1, Thicke said: “The new single is with Kendrick Lamar, he's an amazing talent. I wrote it with will.i.am and now I feel I have a little momentum in my career. will.i.am isn't the easiest guy to get along with in certain respects.

“He's very eccentric,” Thicke laughed. "I love that he's turned into the UK national treasure. He's a super talent."

The singer also commented on his breakout success after years in the business.

"I started when I was 12 years old I've had some success in the States but never had any breakthrough internationally,” he said. “I just make music that I feel and I love. When this happened [‘Blurred Lines’] I felt overwhelmed and it's given me the confidence to go back into studio. It's like 'They love me, they finally love me'," he laughed.

"I don't feel any pressure for the next single to do as well. I can be terrible for at least another year now."

Watch the video for ‘Blurred Lines’ featuring T.I. and Pharrell below: