L.A. style salsa is danced on 1, in a slot, with a measure of easiness and adaptability to it. It is strongly influenced by the mambo, swing, Argentine tango and Latin ballroom dancing styles. L.A. style places strong emphasis on sensuousness, theatricality, aerobics and musicality. The lifts, stunts and aerial works of today's salsa shows are derived mostly from L.A. Style forms with origins in Latin Ballroom and Ballet lifts. The two essential elements of this dance are the forward–backward basic as described above and the cross-body lead. In this pattern, the leader steps forward on 1, steps to the right on 2-3 while turning 90 degrees counter-clockwise (facing to the left), leaving the slot open. The follower then steps straight forward on 5-6 and turns on 7-8, while the leader makes another 90 degrees counter-clockwise and slightly forward, coming back into the slot. After these 8 counts, the leader and follower have exchanged their positions. Albert Torres, Laura Canellias and Joe Cassini are credited for the early development and growth of L.A. Style. Later, such dancers as Alex Da Silva, Edie Lewis, Joby Martinez, Josie Neglia, Liz Lira, Johnny, Luis and Francisco Vazquez and Janette Valenzuela are often credited with developing the L.A. style of dancing as we know it today.