Niall Horan: 'Delighted' for 5 Seconds of Summer's Success!

Niall Horan suits up on the red carpet at the annual Capital Rocks Concert in aid of the Help a Capital Child charity held at The Roundhouse on Thursday night (November 28) in London, England.

The 20-year-old One Direction singer looked quite dapper at the event despite admitting on Twitter that he has been feeling a bit under the weather.

PHOTOS: Check out the latest pics of Niall Horan

“Was driving past koko yesterday at like 6pm! The queue for 5sos was like the length of the whole street, delighted for them! #5sossmashinglondon #koko,” Niall recently captioned a photo on Instagram. For those of you that don’t know, 5 Seconds of Summer toured with One Direction across North America this year!

10+ pictures inside of Niall Horan…