Many longboard-specific trucks also have a reverse kingpin arrangement with the kingpins facing outward. Colombian authorities have seized almost US$28 million in cash from drug kingpins. Bubo Na Tchuto have been named "drug kingpins". Colombian President Juan Manuel Santos named Barrera "the last of the great kingpins". The 1990s new reverse kingpins in trucks made longboarding more stable. At this point, the US authorities added Zavallos to their list of drug kingpins. There were just two grease nipples requiring attention, positioned on the steering kingpins. Invasive methods are all methods that use nails, screws, bolts, kingpins, etc. He worked with The Coasters, and led Aretha Franklin's backing band the Kingpins. She also preferred "country kingpins" like Hank Williams, George Jones, and Keith Whitley. Tipperary returned as provincial kingpins once again in 2011. The Kingpins opened for the Beatles during their 1965 performance at Shea Stadium.