Captain Anton Lin, Lance Corpral Johnnie Miller and Trooper Joe Boot of the Household Cavalry rehearse at Floors Castle in preparation for massed Pipe Band day on August 26, 2011 in Kelso, Scotland. The event, being held on August 28, will feature the first Scottish performance of the Household Cavalry's Musical ride in over 10 years. (Photo by Jeff J Mitchell/Getty Images)

Lance Corpral Johnnie Miller of the Household Cavalry rehearses at Floors Castle in preparation for massed Pipe Band day on August 26, 2011 in Kelso, Scotland. (Photo by Jeff J Mitchell/Getty Images)

Lance Corpral Johnnie Miller and Trooper Joe Boot of the Household Cavalry rehearse at Floors Castle in preparation for massed Pipe Band day on August 26, 2011 in Kelso, Scotland. (Photo by Jeff J Mitchell/Getty Images)

Captain Anton Lin, of the Household Cavalry rehearse at Floors Castle in preparation for massed Pipe Band day on August 26, 2011 in Kelso, Scotland. (Photo by Jeff J Mitchell/Getty Images)

Members of the Household Cavalry rehearse at Floors Castle in preparation for massed Pipe Band day on August 26, 2011 in Kelso, Scotland. (Photo by Jeff J Mitchell/Getty Images)