Niall Horan played BBC Radio 1's Breakfast Show Lyric Game with Nick Grimshaw where he had to try remember the lyrics to two of his songs.
The first song was 'Seeing Blind ft. Maren Morris' from his new album 'Flicker' which, unsurprisingly, he knew the words.
It was when the former One Direction singer was asked to finish the lyrics to one of their songs 'Taken', that he couldn't complete the lyrics!
The Mullingar singer then admitted that some of the songs from 1D's first album were "dodgy enough" and said he "couldn't argue" with 'Seventeen' magazine for ranking 'Taken' as the worst 1D song!
While Niall may not be able to remember the lyrics to one of his former band's songs, he sure knew all the words to his X-Factor audition song 'So Sick' by Ne-Yo.