Levine proposed to Prinsloo over the weekend in Los Angeles. The couple started dating last year. The singer's rep says the 34-year-old Levine and the 24-year-old Prinsloo recently reunited.
Prinsloo is from Namibia and models for Victoria's Secret. Levine also is a judge on the NBC singing series "The Voice."
The Grammy Award-winning Maroon 5 last year released its fourth album, "Overexposed." It features the hits "Payphone," ''One More Night," ''Daylight" and "Love Somebody."
People magazine first reported the engagement.