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Sunday marked the finale of ABC's "Extreme Makeover: Weight Loss Edition," ending with 28-year-old Jarvez Hall, who weighed well over 500 pounds before undergoing the fitness challenge with celebrity trainer Chris Powell. With the help of Powell, Hall began to shed the pounds, dropping down to 267 pounds and size 38 waist (from a size 70) within a year. In the 365 days of the program, Hall lost nearly 300 pounds and showed it off on "Good Morning America" on Monday. Extreme Makeover: Weight Loss

Sunday marked the finale of ABC's "Extreme Makeover: Weight Loss Edition," ending with 28-year-old Jarvez Hall, who weighed well over 500 pounds before undergoing the fitness challenge with celebrity trainer Chris Powell.

By the time Hall, a former Oregon State University football player, reached his freshman year of college, he weighed over 300 pounds, something he was quite proud of.

"Middle school is when I started getting big," Hall told ABC. "People encouraged me to get big. 'Oh, you're big, that means you're more manly. You're big. You're strong and tough. So I was actually excited. I wanted to be big."

Escalated by his mother's declining health due to sickle-cell anemia, and his intense football career, Hall started getting even bigger. At the weigh-in before the "Extreme Makeover" challenge, Hall weighed 548 pounds.

"I'm just going to keep pushing because I can't be 548 [pounds]," he said. "The next number after 548 is death."

Right after he married the "love of his life," Hall decided to write a letter to Powell, asking for help. "Wow, I look at this number and I'm motivated," he said after embarking on the mission to lose weight. "My goal is to get into the 'twos' and officially bring sexy back."

With the help of Powell, Hall began to shed the pounds, dropping down to 267 pounds and size 38 waist (from a size 70) within a year. In the 365 days of the program, Hall lost nearly 300 pounds and showed it off on "Good Morning America" on Monday.

"My world is so different now because I can appreciate the small things in life," Hall said on "GMA." "Just coming here, I got to fly on an airplane and sit in one seat and not have a seat-belt extender. I don't have to worry about where I'm going to sit. I can sit in a movie theater."