With just two weeks before the U.S. release of his debut album '+,' Ed Sheeran stopped by Hinge Studios in Chicago to perform four tracks live for The Live Room, a concert series that captures musicians performing in famous studios around the country.

The studio was big enough for a full band, but Sheeran, as he often does, performed alone with only his acoustic guitar and a loop pedal that allowed him to record and playback parts of the songs. He sang four of his most well-known tracks: 'The A Team,' 'Give Me Love,' 'You Need Me, I Don't Need You' and 'Lego House.' On 'Lego House,' Sheeran sang about fighting to preserve a fragile relationship, crooning, "I'm gonna pick up the pieces / And build a Lego house / If things go wrong, we can knock it down."

Sheeran was equally strong on 'The A Team,' his first hit in England and the song that proved he could capture an audience with the power of his words. He told PopCrush the song was inspired by a performance at a crisis center: "They do this thing every year where they get all the homeless people off the streets and they house them over Christmas and give them health care and dental and food... So I went down and did it and met a lot of people. One in particular inspired that song. I was shocked that sort of stuff went on. I was young and naive at the time and hadn’t really seen that much of life."

Sheeran's '+' arrives in America on June 12. The album has already received numerous accolades overseas, helping the 21-year-old win the BRIT Award for British Breakthrough Act.

Watch Ed Sheeran Perform 'The A Team'

Watch Ed Sheeran Perform 'Give Me Love'

Watch Ed Sheeran Perform 'You Need Me, I Don't Need You'

Watch Ed Sheeran Perform 'Lego House'