The Voice UK coach premiered the dance track on Capital FM this morning, also revealing the upcoming single's artwork.
'This Is Love' features Eva Simons and was produced by will.i.am alongside Swedish House Mafia's Steve Angello.
The Black Eyed Peas rapper said of the song's development: "I just finished this song a couple of days ago on my laptop because times have changed.
"Then we filmed the video two days ago here in London and we edited it on laptops."
will.i.am added: "I've been doing this song since New Year's but taking my time with it, with Steve and Eva, then it's finished on my laptop."
The 37-year-old, currently working on fourth studio album #willpower, added that the music video will be released on Thursday.
Listen to will.i.am's 'This Is Love' featuring Eva Simons below: