This is one Holi celebration that seemed off-colour, especially to India's aviation regulator. The directorate general of civil aviation (DGCA) on Wednesday issued a show-cause notice to SpiceJet asking why its licence should not be suspended, after a video put up on YouTube showed the budget-carrier's crew dancing in the aisles to a Hindi-movie song. On March 1, some crew members treated the carrier's passengers to a small dance sequences as part of Holi celebrations in eight of their flights. In one of the videos that surfaced on social media sharing website YouTube, a pilot on the SG-876 Goa-Bangalore flight is seen coming out of the cockpit and taking photographs of the celebration. The DGCA also suspended two pilots, the NDTV website reported. According to a Times of India report, the DGCA notice said: "Cabin crew acts had drawn the attention of other crew on duty, thus reducing their preparedness/alertness. The frequent movement of the dancing crew may have affected the aircraft's centre of gravity during flight and created turbulence." The DGCA is also upset about the use of cellular devices to take pictures in the air-borne flight, the report added.