Eminem's "Crack a Bottle" featuring Dr. Dre and 50 Cent is the top debut at # 78, marking the rapper's first appearance on the Hot 100 since "You Don't Know" peaked at No. 12 in December '06. Dr. Dre's absence has been even longer; he last charted as a guest on Eminem's "Encore" in January '05.
Source: Billboard
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