Longest singing marathon (multiple singers)
Who
Shree Ramkabir Mandir
What
7:5:47 day(s):hour(s):minute(s)
Where
United States (Carson)
When

The longest singing marathon with multiple singers is 7 days, 5 hours, 47 minutes, achieved by the Shree Ramkabir Mandir (USA) in Carson, California, USA, from 12 - 19 July 2015.

The attempt had participants attend from multiple US States and countries as far away as Panama.