If you subtract the remixes, acoustic versions, live takes, and holiday material that filled Justin Bieber's releases from 2009-2011, Believe falls only a few tracks shy of doubling the singer's quantity of original songs. That fact alone will satisfy a large portion of his fans. More notably, Believe finds Bieber co-writing all but one song and handling his "not a boy, not quite a man" status with poise, despite some considerable contrast between his age and what he has been through. He's at a point in his life where he would fully deserve a pass for taking himself too seriously, but there's "Boyfriend" -- a G-rated "Wait (The Whisper Song)" with a My World-like chorus -- in which he compares himself to Buzz Lightyear. He has endured puberty, including a voice change, all the while undergoing intense public scrutiny that has included fallout from a paternity accusation. He addresses the paternity issue head-on in "Maria," a real-life, modern-day rewrite of Michael Jackson's "Billie Jean": "That ain't my baby/That ain't my girl." (The song is not on the shorter 13-track edition, but it's the most significant song in Bieber's catalog thus far.) Given the space allowed by an hour-long release, Bieber aims for just about every pop market. Believe incorporates appearances from Drake, Nicki Minaj, and Big Sean, while Ludacris is back for the first time. A song featuring slabs of dubstep bass is followed by an acoustic ballad. The throwback "Die in Your Arms" heavily references young MJ, harpsichord and all, and is driven by a well-known breakbeat. The title song involves a gospel choir, while the sound of an acoustic guitar is almost as common as a dance beat. Lyrically, Bieber seems to be in no rush to enter Chris Brown territory. He stays PG, flattering and flirting or stating devotion throughout the majority of the songs; "Loving you is so damn easy" might be the line most likely to raise an eyebrow, while several others, like "Everyone's itching for beauty, but you're scratchin' the surface," have a goofy/awkward teenage charm to them. Believe has enough strong material to keep most of the followers satisfied for another year, while elders should feel relieved that nothing is as sickly sweet as "Baby."© Andy Kellman /TiVo

Like My Worlds Acoustic before it, Believe Acoustic maintains the flow of Bieber product following a proper studio album. It features eight acoustic versions of songs from Believe, as well as three new songs. Studio musicians do most of the instrumental work, but Bieber is credited with some guitar on a couple tracks. The playful side of Believe is not well-suited for earnest, stripped-down renderings. Party anthems like "Beauty and a Beat" and lines like "Chillin' by the fire while we eatin' fondue," from "Boyfriend," seem silly when performed with the singer in serious artist mode. Unsurprisingly, the material that required less of a transformation -- such as "As Long as You Love Me" and "Be Alright" -- fares better. There's some appeal in the new songs: the destined-to-be-a-fan-favorite "Yellow Raincoat," the adequate "I Would" (which is not acoustic), and the sad post-breakup piano ballad "Nothing Like Us," the last of which was written by Bieber alone and seems quite personal.© Andy Kellman /TiVo

It’s not quite right to say that the Go-Go’s' 1981 debut, Beauty and the Beat, is where new wave caught hold in the U.S., but it’s not quite wrong, either. Prior to this, there had certainly been new wave hits -- Blondie had been reaching the Top Ten for two years running -- but the Go-Go’s ushered in the era of big, bright stylish pop, spending six weeks at the top of the U.S. charts and generating two singles that defined the era: the cool groove of “Our Lips Are Sealed” and the exuberant “We Got the Beat.” So big were these two hits that they sometimes suggested that Beauty and the Beat was a hits-and-filler record, an impression escalated by the boost the Go-Go’s received from the just-launched MTV, yet that’s hardly the case. Beauty and the Beat is sharp, clever, and catchy, explicitly drawing from the well of pre-Beatles ‘60s pop -- girl group harmonies, to be sure, but surf-rock echoes throughout -- but filtering it through the nervy energy of punk. With the assistance of Rob Freeman, producer Richard Gottehrer -- a veteran of the Strangeloves (“I Want Candy”) who also wrote the girl group standard “My Boyfriend’s Back” -- sanded down the band’s rougher edges, keeping the emphasis on the hooks and harmonies but giving the Go-Go’s enough kick and jangle that at times the group resembles nothing less than early R.E.M., particularly on “How Much More” and “Tonite.” But this isn’t Murmur; there is nothing murky about Beauty and the Beat at all -- this is infectiously cheerful pop, so hooky it’s sometimes easy to overlook how well-written these tunes are, but it’s the sturdiness of the songs that makes Beauty and the Beat a new wave classic.© Stephen Thomas Erlewine /TiVo

The third single from Believe -- and Bieber's fifth Top Ten Hot 100 hit -- "Beauty and a Beat" rides rushing synthesizers, an elastic bassline, and assorted blips and croaks from producers Zedd and Max Martin. It's a euphoric party anthem, but Bieber's performance is mechanical and distant; perhaps coincidentally, it's the lone Believe song neither written nor co-written by him. Nicki Minaj adds a mismatched guest verse that is only somewhat lewd and rhymes "wiener" with a reference to Selena Gomez.© Andy Kellman /TiVo