Tobias Jesso Jr.’s debut record is a knockout, leading the renaissance of young artists who are revitalizing the idea of the singer/songwriter in 2015. With little more than his piano and a liquid-smooth voice, Jesso’s songs cut straight to the heart, detailing a painful breakup and other trials as the 29-year-old tried to make it as a songwriter in L.A. Opener “Can’t Stop Thinking About You” alludes to Elton John’s “Your Song,” though on the wrong side of devotional feelings. “How Could You Babe” rubs raw as he reveals the pain felt after learning an ex-lover has moved on, tearing his voice upward in a powerhouse chorus. Goon is exceptionally well paced and produced (with some help from ex-Girls guy Chet “JR” and producer extraordinaire Ariel Rechtshaid), dialing down the drama a bit for songs like the Lennonesque “Without You” and acoustic morning reflection “The Wait” to allow the breathing room necessary to house songs like “Hollywood,” a showstopper about trying and failing in L.A. (lines like “I think I’m gonna die in Hollywood” ring into hollow space) that universally taps into the desire to achieve some farfetched dream. Goon is definitely sentimental, occasionally to a fault, as on the skilled but ultimately generic-feeling “Can We Still Be Friends,” but Jesso’s sense of humor and ability to open himself so purely prevents anything from feeling too goopy. He makes fun of himself in the purposefully sappy “Crocodile Tears,” imitating his own cries, while delivering lines that genuinely feel like a knee to the gut, like “Without You’s” flailing bits about what to do and feel after a breakup (“I just don’t know who I could be without you” hits home for anyone who’s been there). Luckily for Jesso (and for us), he was able to turn his seeming failures into affecting songs that express an undefeatable optimism underneath. It’s the rare first record that already feels like a classic the first time you hear it.