WASHINGTON, Dec. 3 (UPI) -- Miley Cyrus made sure to say "Happy Birthday" to Britney Spears with an order of huge customized balloons.
The alternative pop star, 23, sent Spears a special collection of large silver letter balloons which spell out her name for a surprise party. The 34-year-old "Ooh La La" singer made sure to thank Cyrus on Instagram for the addition.