The couple got engaged at their home on Monday evening, according to entertainment journalist Marc Malkin.
The 'Candy' singer was spotted at Caffe Luxxe in L.A.'s Brentwood neighborhood on Tuesday, September 12, flaunting what appears to be an engagement ring, reports E! Online.
"The best 2 years," Mandy penned. "Never not smiling with you, T." (ANI)