The singer was sentenced to probation after taking a plea deal for her March DUI arrest. Britney Spears attends the 29th Annual GLAAD Media Awards at The Beverly Hilton Hotel on April 12, 2018 in Beverly Hills, California. Alberto E. Rodriguez/Getty Images Trending on Billboard Britney Spears made her first public statement since a March DUI arrest resulted in a stay in a rehab facility. Though she did not specifically reference the case or her time in treatment, Spears, 44, was back on Instagram on Saturday (May 10) with a post alluding to recent headlines . Explore See latest videos, charts and news It opened with a story about going to a pet store with her kids to look at a baby snake — with a shot of a beautiful albino ball python wrapped around someone’s hand — before pivoting into a more personal tone.…