The Irish heartthrob arrived at London's Heathrow airport without his band mates, but landed back in the UK in good spirits after 1D scooped four gongs at the Teen Choice Awards in California on Sunday night (11 August).
Niall has had a pretty incredible nine weeks in the US, including performing across states for the band's 'Take Me Home' tour and of course meeting David Beckham last week!
Returning home last night (12 August), a jet-lagged Niall said: "Hometime baby! Loved being out in the States for the last 9 weeks! Had great fun, time to relax now!"
Niall, who was still overwhelmed by 1D's win at the Teen Choice Awards, added: "By the way! Again, thank you so much for yesterday! 4/4 awards! Amazing! Thank you! Don't know where I'm gona fit those surf boards at home."
Niall will soon have to relive a prank played out on TV, after he got a semi permanent tattoo of James Corden's face transfered onto his left buttock!
Niall - who is the only member of 1D not to have any tattoos - agreed to the temporary transfer while appearing as a guest on James' Sky1 show A League Of Their Own, but it turns out the singer got in a panic when it didn't wash off until three weeks later!
James told The Sun: "He sent me an update every week, with a photo of my fading face on his a**e saying, 'It's still not gone yet'."
Niall saw the funny side of it though and after pictures emerged of the tattoo saga last night, he said: "What ya think of the pic of my arse and @jkcordens face?"
James later added: "@NiallOfficial @JKCorden You love it Niall! I think you should get it done permanantly! #aloto."
The episode with Niall is yet to air, but he appears in the new series of the comedy panel show which returns to Sky1 on 23 August.