For years, the youngest Lennon (he is 31; Julian Lennon is his older half-brother) has been known more for his celebrity romances — with Mick Jagger’s daughter Elizabeth, actresses Bijou Phillips and Lindsay Lohan — than for his work. He had come to be viewed as a musical underachiever, wasting away whatever talent he might have been harboring.

Now, eight years after his promising first album, John Lennon’s son Sean has finally released his second full-length CD, Friendly Fire. Here, Lennon sings in a relaxed voice about love and loss over pleasing pop music that has, at times, Beatle-esque melodies and arrangements.

It comes with a second disc, a DVD with extravagant music videos produced by his mother, the artist Yoko Ono, and featuring Lohan, Phillips, Carrie Fisher and other familiar actors. He calls the combined videos “an art film.” (Visit www.seanonolennon.com for excerpts.)

During a recent phone interview, Lennon sounded like a reluctant royal, committed to making pop music but not terribly comfortable as a celebrity.

His voice was gentle and lilting, though the tone of his brief answers ranged between languidly tight-lipped and sharply guarded.

Q: Well, it’s been long time no music. Why so long?

A: ... I always write songs. I didn’t want to deal with the superficial aspects of promoting myself and all that crap.

Q: Like what you’re doing right now?

A: Exactly what I’m doing now. I’ve come to a point in my life where I realize I shouldn’t fight the inevitable. One must accept reality.

Q: What was it like to work with your mother on the videos?

A: She produced them. She advised me on business and technical decisions; she’s a great filmmaker.

Q: Why are you a musician?

A: Probably because it’s the hardest thing to do. ... Probably there’s like some Freudian reason I’ve chosen to do it that I don’t understand.

Q: You’re the son of John Lennon and Yoko Ono — do you ever feel like you should just get away from all the pressure of being a musician and be a lawyer or something?

A: If I thought that would relieve the pressure maybe I would, but I don’t see any release ... from being this cultural phenomenon.

Q: What are your favorite memories of your father, as a musician and as a father?

A: I don’t like talking about that. It’s a bit too precious to give it away too easily.

Q: How about your favorite Beatles song?

A: I don’t have favorite things. I don’t have a favorite color. (suddenly) Rubber Soul — no, not Rubber Soul, Revolver. (Two Beatles albums.)

Q: Just about every other pop musician in your generation has been influenced by the Beatles. Is it fair for you to be?

A: Is it fair? I don’t think fair has anything to do with it. As a musician you’re influenced by people doing good music before you, whether it’s Beethoven or Bob Dylan or Elvis ...

Q: Or the Beatles?

A: How could you not be influenced by the Beatles if you write songs? If you make anything as an artist you have to study the masters or else there’s no point.

Q: What were you wanting Friendly Fire to be — a pop record? A dance record?

A: Not really a dance record, more like a take-a-bath record. Expectations are the root of all disappointment.

Q: Are you happy with how it’s been received?

A: I think my satisfaction is found more in the process of making music than societal recognition.

Sean Lennon is at Paradise Rock Club, 969 Commonwealth Ave., Boston, at 9 p.m. Saturday. Tickets are $17. Call (401) 331-2211 or go to www.ticketmaster.com.