The cozy couple continue their joint birthday celebration in Sin City. Plus: Sienna Miller, K-Fed and more


Even though he's separated from bike buddy Lance Armstrong, Matthew McConaughey keeps up appearances in Queensland, Australia, on Friday. The actor, who's Down Under filming Fool's Gold, also showed off his latest acquisition: A temporary mermaid tattoo (inset) that bears a striking resemblance to costar Kate Hudson.

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