Brockhampton, an unwieldy, self-proclaimed boy band born on the internet, has barnstormed into the mainstream with a No. 1 album.

“Iridescence,” the group’s major-label debut after three independent LPs and a smattering of digital mixtapes and singles, tops the Billboard 200 this week, earning 101,000 album equivalent units, including 79,000 in traditional sales and 29 million streams, according to Nielsen Music.

Brockhampton’s strong showing — without a hit single — follows a period of growing pains for the group, which signed a reported $15 million record deal with RCA earlier this year, and then lost a key member, Ameer Vann, in the wake of sexual abuse allegations.

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For “Iridescence,” the California-based collective, which features singers, rappers, producers and visual artists, used the now-common tactic of bundling the album with merchandise and concert tickets to increase sales. Such a strategy has proved especially effective for acts, like Brockhampton, that have prized consistent imagery and branding, and nurtured young, loyal fan bases online.