Miley, Noah and Tish Cyrus
Courtesy of Miley Cyrus
06/16/2013 at 01:00 PM EDT
A few days after Billy Ray Cyrus, 51, and Tish Cyrus, 53, publicly announced their plans to divorce
, daughter Miley Cyrus
, 20, let cyberspace know that she and her girls are sticking together.
"The baddest b–s in the WORLD," the "We Can't Stop" singer Tweeted
on Saturday to accompany a shot of little sister, Noah, 13, and their mom, posing in a car with matching blonde hair.
The photo was posted a day before Father's Day, a date that Miley did address
– sans photo – several hours after the picture.
"Happy Daddy Day @billyraycyrus," the pop star wrote with a heart icon at the end.
Miley, who has seemed to be
"in a really good mood," amid divorce proceedings, has expressed that she is "fine," but worries about Noah, who Tweeted
on Friday, "Please pray for me and my family."