Bo is a big brother! President Barack Obama and Michelle Obama have welcomed a new addition to their family -- a puppy named Sunny.

The Obamas -- Barack, 52, Michelle, 49, Malia, 15, Sasha, 12, and dog Bo, 4 -- introduced the newest member of their family with a special YouTube video and photos of the adorable new pup.

"Sunny was born in Michigan in June 2012, and arrived at the White House today," they announced on The White House Blog. "Just like Bo, she's a Portuguese Water Dog, which works great for the Obamas because of allergies in their family. Sunny is the perfect little sister for Bo -- full of energy and very affectionate -- and the First Family picked her name because it fit her cheerful personality."

The announcement also mentioned how First Lady Michelle told reporters in October that she hosted a "doggie play date" because "Bo doesn't have enough dog interaction." That problem has now been solved! The statement continued, "We suspect Sunny will follow in Bo's footsteps and keep the President company in the Oval Office, go for walks with the First Family after their 6:30 family dinner and even jump up on the First Lady's lap from time to time!"

On Monday, Michelle tweeted a photo of her two dogs with the caption, "So excited to introduce the newest member of the Obama family -- our puppy, Sunny!"

Watch the adorable video above and tell Us: Do you like the name Sunny?