Watch Miley Cyrus Lip Sync the Spice Girls' 'Wannabe'

5/9/2015 by Jocelyn Vena

Peter Kramer/NBC/NBC NewsWire

Miley Cyrus appears on NBC News' "Today" show on Oct. 7, 2013.

To celebrate the birthdays of both her pal Cheyne Thomas and her brother Braison Cyrus, Miley Cyrus decided to head to Instagram and post a video of herself lip syncing.

But she wasn't just lip syncing anything. She tackled the Spice Girls' classic track, "Wannabe." "Happy birthday this always enthusiastic little baby @cheythombest day of my life!!! My 2 favorite boiiiis in the world were born! @braisoncwukong love u bear bear!" she wrote on May 9.

Happy birthday this always enthusiastic little baby @cheythom best day of my life!!! My 2 favorite boiiiis in the world were born! @braisoncwukong love u bear bear!
A video posted by Miley Cyrus (@mileycyrus) on May 9, 2015 at 11:36am PDT

In addition to wishing her closest dudes a happy birthday on Saturday, she had another reason to celebrate. She posted a photo of her newest pet, a white kitty, to social media.

Meet the newest member of the fam and follow on Instagram @shantiombb
A photo posted by Miley Cyrus (@mileycyrus) on May 9, 2015 at 4:40pm PDT