(Undated) -- Madonna's daughter is raising eyebrows after being spotted on the beach smoking what looks like marijuana. Seventeen-year-old Lourdes has been vacationing on a yacht in the south of France since last week. Photos surfacing Wednesday show the recent high school graduate on a busy beach in Cannes with friends puffing at a suspicious-looking rolled cigarette. It's unclear if her famous mother was present, but Madonna had joined her on the trip last week bringing along the rest of the family and much-younger rumored new boyfriend Timor Steffens. She'll be celebrating her 56th birthday on Saturday.
Madonna has publicly disapproved of Lourdes' smoking in the past.