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Kind words can be short, but they can also be oh-so-sweet!

Joe Jonas spent part of his weekend at the iHeartRadio Music Festival in Las Vegas. In between supporting brother Nick Jonas and performing at the official after party, the former Jonas Brothers member just so happened to be asked about Gigi Hadid.

What he said about his girlfriend may just warm your heart.

"If I said the word Gigi, what comes to mind," Sibley Scoles asked the singer. "Happiness," Joe replied with a giant smile on his face.

Joe Jonas, DNCE

BRYAN STEFFY/Getty Images

DNCE member JinJoo Lee added, "I think she's an angel." Awww!

For those who didn't hear the exciting news, Joe has created a brand-new band called DNCE who recently released their debut single "Cake by the Ocean." They also performed at the festival's official after party at Light Nightclub.

Putting music aside, Joe and Gigi have never looked happier after turning their friendship into something more earlier this summer.

PHOTOS: More singers performing live 

Joe Jonas, Gigi Hadid, U.S. Open

JASON SZENES/EPA /LANDOV

"Gigi feels very comfortable with Joe and it's very easy to talk about everything that's going on in her life with him," a source shared with E! News when the romance news first broke. "He understands where she is at and they are not in any rush."

Another insider added, "They never really stopped caring about each other. Things are going really well for them."

Highlights from the iHeartRadio Music Festival air Sept. 29 and 30 on The CW.

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