|Birth name||Demacio Castellon|
|Born||June 6, 1978|
|Associated acts||Nelly Furtado, Timbaland|
Castellon met and began dating Canadian recording artist Nelly Furtado in 2006, while the two were working on Furtado's third studio album Loose (2006). The couple became engaged in July 2007 and wed on July 19, 2008. They split in the summer of 2016.
- "Secrets Of The Mix Engineers: Demacio 'Demo' Castellon". Soundonsound.com. Retrieved 2016-06-01.
- "Nelly Furtado Reveals She's Been Married For Almost Three Months". Mtv.com. 2008-10-17. Retrieved 2016-06-01.
- Messer, Lesley (2008-10-17). "Nelly Furtado: I'm Married! - Weddings, Nelly Furtado". People.com. Retrieved 2016-06-01.
- "Full Sail University Blog". Fullsail.edu. Retrieved 2016-06-01.
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