Oh yeah, and they share an astrological sign that encompasses thier love of travel and thought. The mystical and alluring Sagittarius. This year the girls are throwing a joint birthday party with the theme of giving back in mind. SHAKE THAT, GIVE BACK is going to bring people together for the ultimate dance party in support of The NUWAY Foundation, and the Women’s Refugee Commission. All of the ticket proceeds will be split in half and donated to these two charities.