If you're hunting for the lyrics to 'Half a Heart' by One Direction, my go-to is always Genius because it usually has line-by-line transcription plus annotations. I like opening the Genius page in my browser, reading the lyrics, and then scrolling down for the song credits and any fan notes that explain little turns of phrase. It helps when I’m trying to sing along or figure out what a particular line really means — plus the mobile app syncs so you can follow the words while the track plays.
Another reliable route is streaming platforms: Spotify and Apple Music often show synced lyrics as the song plays, which is amazing when you want the timing to be perfect for karaoke. If I’m at my laptop, I sometimes pull up the official music video or lyric video on YouTube — official uploads from the band or their label tend to be accurate, and a lot of lyric videos are uploaded by verified channels. For printable versions, Musixmatch and AZLyrics are quick choices (just watch out for small transcription errors on crowd-sourced sites).
If you want an official, permanent source, check the album booklet for 'Midnight Memories' (physical copy) or the digital album notes in stores — those are the most authoritative. I often cross-check two or three of these places because a stray typo on one site can mess up a line you want to learn. Happy singing — there's something oddly satisfying about finally nailing the chorus!