Lambert, 30, rose to fame during the 2009 season of "American Idol," and on Monday night he was introduced to the intimate crowd at the Fan Cave by dweller Ricardo Marquez. It was the third performance of the day for Lambert, who was running on fumes after being up since 3:45 a.m., but you wouldn't have known it from the powerful performance. Then he soothed his throat with hot tea and met each of the Cave Dwellers as they watched live Major League games.
Following are some highlights of Lambert's pre-concert interview with MLB.com host Jeremy Briesel.
On his inspiration for the music:
"I wrote about things I know, things that are real to me and my life. I wanted to give fans a little more insight into who I was as a real person. At times in the writing process, I kind of challenged myself to go back to a time before 'American Idol' and imagine, 'OK, where was I before all this craziness? Where was I? What made me want to become a singer? What makes me, as a listener, go, "That's a good song."' I noticed that was the stuff that kept pulling me into songs, that kind of funky swagger."
On the difference between "Trespassing" and his debut album, "For Your Entertainment":
"I have the luxury of time. The first album, which I am very proud of as well, was completed in about two months, while I was on a stadium tour. It was very fast, very fly by the seat of your pants, and I didn't really have time to think about it. I also didn't have a lot of time to live with the material, and to kind of experiment. It was like, 'OK, that's a good song, let's record it.' We did a good job. With this album, I got to get in the studio, explore and work with a ton of different people. Slowly but surely, over the course of a couple of months, I noticed the ones I kept wanting to listen to and kept going back to were the funk songs. So funk was the centerpiece of all this."
On what people will get out of "Trespassing":
"I think the album has two sides to it. From the first side -- the upbeat, dance side of the album -- I hope people get strength, confidence, encouragement to be who they are, to do what they want to do in life, and connect with other people and find love, joy and freedom. The back half of the album is more for those moments when you need to commiserate, where you need to get through something and face your own demons in the mirror, when your heart is broken by somebody. There is a lot of support from both ends."
Mark Newman is enterprise editor for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.