At the USGP he had US Olympic skier Lindsay Vonn, who is probably better known as Tiger Wood's ex-girlfriend, and tennis star Venus Williams in his pit garage for support. But he probably didn't need it, as he seemed far more focused for the weekend than certainly he was during the Japanese GP when he got caught up in what was dubbed "Snapchat gate".
Hamilton's fourth win in Austin is also his fifth USGP victory, the other coming at Indianapolis in 2007 in his rookie F1 season, and he has now equalled Michael Schumacher's five wins in the event. More significantly, it was his 50th grand prix win, just one win behind Alain Prost's total of 51, but a long way from Schumacher's seemingly untouchable 91 victories.
Unsurprisingly, Hamilton with his seventh win of the season quickly put behind him thoughts of engine failures or start problems which he says has allowed Rosberg to lead the championship.
"This has always been a good hunting ground for me," a happy Hamilton told podium interviewer actor Gerald Butler. "I love being here in the States. All I can do is do my best. Continue to drive as I have this weekend and Nico has been driving fantastically well all year so the battle will continue.
"But I know we have all the support that will continue as well, so fingers crossed guys. I'll be going for it."
When reminded that he had won his 50th GP, Hamilton seemed to exhibit surprise.
"I completely forgot that it was the 50th. It's been a long time coming. I've been here for 10 years and I've had lots of ups and downs. It's surreal to get here and I can't believe there is only three of us. Hopefully I'll go on to bigger and better things."
No doubt as Hamilton reflects on that statement, he will be reminded that 10 years is not that long in F1, compared to Schumacher's 16 years, Jenson Button also in his 16th year and Fernando Alonso his 14th, to name just three. It took Prost 13 years to achieve 51 wins.
Rosberg, who has been in F1 a year longer than Hamilton, was disappointed with his start in the race, choosing to go to the right of Hamilton at the first corner, leaving the door open for Daniel Ricciardo to come through on his inside.
He spent the first third of the race getting that place back, thanks to Ricciardo's teammate Max Verstappen bringing out the Virtual Safety Car (VSC) when he suffered a transmission failure.
"I lost out a bit at the start unfortunately and then gave it everything to get it back," Rosberg stated. "Second place is okay as it was damage limitation today of course. I wanted to win here in America, that would have been awesome, but it wasn't to be. Next time maybe."
Asked if he had been "playing it safe" settling for second place, Rosberg insisted he wasn't.
"Definitely not, I was going for it flat out all the way to the end. Lewis did a great job this weekend, all the way through, qualifying and the race, so it just wasn't to be."
Ricciardo meanwhile lamented the deployment of the VSC that enabled Rosberg to jump him in the pit stops.
"The plan was to try to get both Mercedes but at least we got Nico, which was a positive," Ricciardo explained. "Then we were looking like we were holding second quite okay, then the Virtual Safety Car. It is what it is.
"It is a bit of a frustrating one sometimes. Nico was able to jump me through that procedure."
Ricciardo will have seen the re-play and may have reason to be unhappy with Verstappen who probably should have pulled off much sooner than he did, rather than having to bring out the VSC.
It was a relatively tame race for Verstappen while it lasted. Charlie Whiting, the FIA technical delegate, had clarified with drivers before the race the ruling on the 'moving under braking' situation.
"Any change of direction under braking which results in another driver having to take evasive action will be considered as abnormal and hence potentially dangerous to other drivers," the note read.
It was clearly brought in because of Verstappen's defensive move on Kimi Raikkonen at Spa, and Hamilton at the chicane in Japan. Veteran F1 driver Jenson Button welcomed the rule clarification.
"As soon as somebody moves in front of you and takes the space you were aiming for, you're screwed," Button said. "You're either going to go over the top of them or you're going to miss them and end up in the barriers.
"It's common sense more than anything, and for 15 years of racing, we haven't really had any issue. It's just in the last couple of years we have. So it's clear, they've clarified it, and I'm happy about that."
Button didn't point the finger at Verstappen, who is in his second F1 season, but the latter has fielded complaints from both Ferrari drivers and Hamilton. So what did he make of the rule change?
"I think it's good to make it clear to everyone what's allowed, and what's not," Verstappen said.
"So let's see how it's going to turn out. To be honest, I haven't really thought it through yet, what I should do, or what I would do. I'm just going to race and then we'll see how it's going to be with overtaking, and how people are defending.
"In the heat of the moment you're always trying to defend your position. So far it has said in the rules that you could go to the inside in braking, now it's not, so let's see how that's going to affect the race," he added.
Verstappen wasn't involved in any overtaking incidents, but Alonso and Felipe Massa, ex-Ferrari teammates, and still friends, were. Alonso was chasing Massa late in the race, with Carlos Sainz just ahead of the two of them.
When Sainz locked up and Massa left a gap, Alonso drove into it, pushing Massa wide. Once past Massa, he also overtook Sainz to finish fifth, a great result for McLaren, especially with Button also finishing ninth.
Alonso and Massa blamed each other and the race stewards sort of agreed with both, finding they contributed equally to the clash.
Vettel finished fourth for Ferrari, while Raikkonen did not finish after his team failed to secure a right rear wheel, and he reversed into the pit lane and into retirement. Ferrari is still looking for a first win this season.
The next stop on the F1 calendar is the Mexican GP this weekend, so Hamilton wouldn't have had much time to celebrate win number 50.
Rosberg will go to Mexico City knowing that he won the race last year, and then went on to win in Brazil and Abu Dhabi, too late to save the championship, but a momentum boost for 216, which he has capitalised on.
If he wins those same races this year, he is world champion. But if Hamilton wins and Rosberg has the reliability issues that Hamilton is almost paranoid about, a fourth title could yet go the British driver's way.
With 58 pole positions, 50 GP victories and three world titles, it is not surprising Hamilton is going to go for it, as he has nothing to lose, but a fourth title to gain.
From the yahooing in Texas to the Mexican wave, this championship battle has much more excitement to deliver.