The hotel worker, 21, thanked his mentor, singer and Oscar-winning actress Jennifer Hudson, for her support as confetti fell around him and he was hugged by his fellow contestants.
Host Emma Willis was forced to apologise for the expletive.
It went down a storm with their coach Sir Tom who said they had been "tremendous".
As coach Jennifer Hudson's jaw dropped while wondering what the guy was up to, a member of the show's security team quickly rushed onstage and pushed the intruder off camera, so viewers never did get to find out what his message was.
Adeniran took the title following performances o f Paolo Nutini's Iron Sky and Unsteady by X Ambassadors.
Trump grants Pentagon more authority for Somalia fighting
The official grade of certainty that civilians won't be killed has been lowered from "near certainty" to "reasonable certainty". The military had accused the previous Democratic administration of president Barack Obama of micromanaging combat operations.
And when it comes to Will.i.am, he declared to the Radio Times: "I would do that. if Tom does it".
When he was announced as the victor, the aspiring singer was clearly overwhelmed while mentor Jennifer Hudson was left in tears.
The Team Jennifer singer beat out all the competition from the past twelve weeks to sign a record deal with Polydor records.
Well, this is where things get a little bit unusual.
The Voice UK final will kick off with a tribute to the late George Michael by the show's four coaches.
Kim Jong-Nam's body returned to North Korea as suspects released
Malaysia exchanged Kim's body for the release of nine Malaysian citizens held by Pyongyang in a diplomatic spat over Kim's death. The police chief added that Malaysia released Kim Jong Nam's body after receiving a request from his next of kin.
Hudson's second act, Jamie Miller, also made it to the final.
"I started believing in myself the minute you pressed the button".
While he didn't quite make the final cut The Dream Girls star couldn't have been prouder.
"With Truly she is so complete I don't know whether she is a bit intimidating for some people, the people who are voting at home. You owned it. This is your moment, this is your night", she said. No official winner's single will be released.
Playing Tetris 'can help stop post-traumatic stress flashbacks'
Most of the participants said they found the " Tetris " task easy, helpful and minimally distressing, the researchers said. Half were given Tetris to play and the other half were asked to carry out a writing exercise instead.