Caleb Followill Engaged

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September 20, 2010 | 3:10pm EST

Kings Of Leon star Caleb Followill is officially off the market – he’s set to wed to his model girlfriend Lily Aldrige.

The rocker, 28, proposed to the 24-year-old beauty over the weekend, a representative for the band has confirmed.

A date for the nuptials has yet to be set, according to