1. 1982: Released “My Mother is A Space Cadet"/ "Crunchy Water,” his debut single with Dweezil Zappa.
"I was in school with Dweezil Zappa, Frank Zappa's son, and we had a band. Only in L.A. could stuff like that happen. We would hang out in Frank Zappa's studio, and we released a single in 1982 on his label. I was 12, and that was the first recording experience I had. To top it off, Eddie Van Halen produced it. My life was not always insane like that. Once it was over, nothing like that happened again for a long, long, long time. I went back to high school bands and playing in garages."
2.1996: Scored an Alternative Rock Hit With "Whoever You Are"
"I was struggling between playing jazz gigs and playing with Geggy Tah in my twenties. We were doing a lot of radio shows when that song broke. People started showing up and we would play our song and there were screaming fans. It was a very brief moment, and then a reality check. I thought 'Oh my God, I have a song on the radio, I can retire now' and, of course, it doesn't work like that. You need another single and another single after that, and we didn't have the follow-up."
3. 1999: Played Keyboards On The Red Hot Chili Peppers’ Californication
"When I was playing in Geggy Tah, someone introduced me to Flea. I think he wanted a piano player for a jazz thing that ended up not happening. I got to know him a bit, so he asked me to play on Californication. That was one of my first big sessions, and I got more session work through that, and then I started playing on some pop records as well."
4. 2006: Started The Bird and the Bee With Singer Inara George
"I really wanted to get into recording, so I had an engineer friend of mine show me how to use Logic. I was playing on Inara's solo album and was performing with her around L.A. at the time. At the end of the night, we would play a jazz standard in the style of what became The Bird and the Bee, sort of eerie jazz on a Fender Rhodes with her singing. We thought, 'Let's just record something,' and I just recorded a full album and mixed it myself."
5. 2009: Co-Wrote and Produced Lily Allen's It's Not Me, It's You
"That was the first album I produced that wasn't The Bird and the Bee. It wasn't planned that way. We did two songs, and we did five songs, and we were on a roll -- we were just working really fast and seemed to be clicking. I think she was writing with other people, but I just ended up doing the whole album in the end. I realized this was a really big opportunity and I didn't want to blow it."
6. 2012: Co-Wrote and Produced Kelly Clarkson's "Stronger (What Doesn't Kill You)"
"At this point I had mostly only done stuff in London and the UK; I don't think people knew much about me in the United States. I remember talking with Kelly on the phone, and she wanted to push the boundaries a bit and try something different. I said, ‘I'd love to do that with you.’ At the time, Jeff Aldrich was doing A&R for her, and he heard the demo of an earlier version that was slower, more mid-tempo with a different beat. He said, 'Do you think there's anything you could do with this? I like the chorus.’ So I messed around with it, and that became ‘Stronger.’"
7. 2013: Co-Wrote and Co-Produced Tegan & Sara's Heartthrob
"I think they had not co-written before. I am sensitive to the fact that it can be a new experience for an artist, and I shouldn't clobber them with my ideas, but just be open-minded and listen. But with Tegan & Sara, the process was effortless. I think they wanted to explore some different sounds, a lot of them being synth and keyboard related, and I'm a big synth nerd from way back, so that was more than a pleasure to accommodate. They wanted to make something cool, and it was okay if there were pop songs on the record. They weren't afraid to go there."
8. 2015: Co-Wrote and Produced Adele's "Hello"
"Going to work with Adele in England, I was excited, and I was also a bit nervous. Writing 'Hello' started very easy, but writing the chorus became a huge challenge that we didn't really nail in the first round of writing sessions. We had to come back a month later to tackle it again, and it was not until the third or fourth try that we finally got to the chorus that ended up on the song. I don't know if I've ever worked so hard on writing a song before."