The happy moment occurred on Saturday in Los Angeles, Demi's representative told People magazine. They have been dating for more than a year, having first gone public with their romance in August 2022.
Lutes, 32, first met Lovato, 31, in January 2022 when they co-wrote her song Substance.
According to People, he proposed with a bespoke pear-shaped diamond solitaire engagement ring from New York luxury jewellery boutique Material Good.
After a "personal and intimate proposal" the loved up couple visited the L.A. restaurant Craig's with their families.
In addition to co-writing Substance, Lutes also helped pen Happy Ending and City of Angels from Lovato's latest album, Holy Fvck.
