By Meredith Lepore
Updated Dec 07, 2015 @ 12:30 pm
Singer Adele on November 23, 2015 --
Credit: Douglas Gorenstein/NBC/Getty Images

Adele is on top of the world right now. After all, her latest record, 25, became the top-selling album of 2015 (after less than a week on sale) and is now the bestselling album of any year since 2011. Plus, her music special Adele Live in New York City – One Night Only airs Dec. 14 on NBC. All these recent successes seemingly reflect her current place in life.

"I've never been happier and I've never been healthier. So I'm good," the singer told Matt Lauer in an interview that aired on the Today show Monday.

She attributed her contentment largely in part to her 3-year-old son, Angelo, who made her a more emotional person in "every single way possible" and even inspired her to get coordinating wrist tattoos. Her right hand reads, "Angelo," while her left says, "paradise," and they refer to each other, she said.

While, in general, happiness is great, for a time it seemed to hamper her song-writing process. "I found it impossible [to write] for a while," Adele told Lauer. "I didn't know what I wanted to write about. ... What's wrong is I wasn't sad."

Luckily, once she "chilled out," her writer's block went away.

She also explained the meaning of the lead single from the album. "'Hello' is just about reconnecting with everyone else and myself," she explained. "I couldn't get over my guilt of leaving my kid to go and write a record and stuff like that. So [it's] getting over that—getting on the other side of that. It was just, you know, it's in general, just 'hello' to everyone."

Watch Adele's Today interview here:

Adele's one night only concert, which was filmed in November, will air on NBC Dec. 14.