- Quem
- Julian Hill
- Resultado
- 24/21/25 hour(s), minute(s), second(s)
- Onde
- Reino Unido (London)
- Quando
The longest marathon playing a karaoke videogame was 24 hours 21 minutes 25 seconds by Julian Hill (UK), who sang in support of Great Ormond Street Hospital, London, UK, from 13–14 April 2012.