But did it succeed?
Dancing onto the stage to the tune of Swedish pop group ABBA's hit "Dancing Queen", May mocked herself, jokingly saying if she lost her voice it was because she had been up half of the night super gluing the stage set.
Asked what she thought of Johnson's speech, May told Sky News that Johnson had put in a characteristically good performance.
The driving message of the speech was unity. "Now politicians should support her to get a deal - and the critical withdrawal agreement - over the line".
Some of Johnson's supporters, while welcoming his speech, said they believed now was not the time to launch a leadership bid against May.
"Would Clement Attlee, Churchill's trusted deputy during the Second World War, have told British Jews they didn't know the meaning of antisemitism?"
The Prime Minister will have to convince her DUP allies it does not put a border down the Irish Sea and Brexiteers it will not be a permanent solution that stops Britain signing trade deals.
Though Labour MP Angela Rayner described the dance with the hashtag cringe, Scottish National Party MP Joanna Cherry said May's dance was "an affront to my favorite song".
PRIME MINISTER THERESA MAY: What we are proposing is very challenging for the EU.
The prime minister has faced the EU's rejection of her Brexit plan and a tight race in the polls with Labour - not to mention sniping from Tories who'd like her to do the soft shoe shuffle out of No.10. But pro-exit members of May's Conservative government oppose any softening of the U.K.'s stance. This included what she said was his "tearing up" of a guarantee to the people of Northern Ireland. The problem for the rest of us is she may not actually be serious at all about doing what it takes to end the savage destruction of the age of austerity.
Champions League: Mourinho’s Man United misfire in Valencia stalemate
They come up against Valencia with United's record against Spanish sides staring in the face of Jose and his charges. The Red Devils are 10th in the Premier League after seven matches, with three wins, one draw and three defeats.
On the final day of her party's conference, Mrs May rallied members, trying to address their concerns that the Conservatives are becoming increasingly directionless under the weight of Brexit by calling on them to look to a brighter future.
Away from politics, the Confederation of British Industry director general Carolyn Fairbairn, said: "The Prime Minister's unambiguous call to back business is welcome". It ends in the letter "K".
On the speech, Mr Kidd said: "It was a muted challenge but perhaps a more effective one".
And then came the policies.
The big announcements - on cancer funding, scrapping the cap on council borrowing for housebuilding and ending austerity - will prompt critics to wonder why it took so long to confirm them. She did a good job name checking key figures including Sajid Javid and Ruth Davidson - which was also created to combat the image of the party as culturally and socially narrow.
"Because for millions of people, their auto is not a luxury". "If we get it wrong if we bottle Brexit now believe me, the people of this country will find it hard to forgive", said Johnson, seen a lead contender vying to replace Theresa May as PM. "If we stick together and hold our nerve, I know we can get a deal that delivers for Britain".
"The next few weeks will be critical in getting Brexit right, and reveal whether she can deliver".
European Union leaders have also rejected her proposal for Britain to remain closely economically aligned with the bloc, and gave her until a summit on October 18 to rework it.
She said that "leaving without a deal - introducing tariffs and costly checks at the border - would be a bad outcome for the United Kingdom and the EU" - though she refused to rule it out. "Even if we do not all agree on every part of this proposal, we need to come together", May said.