▁only ▁ 1 0 ▁sl ots . ▁ ▁On ▁the ▁first ▁issue ▁of ▁its ▁ 1 9 9 2 ▁rev ival , ▁the ▁chart ▁was ▁renamed ▁to ▁" B ub bling ▁Under ▁Hot ▁ 1 0 0 ▁Singles " ▁from ▁its ▁previous ▁name , ▁" B ub bling ▁Under ▁the ▁Hot ▁ 1 0 0 ". ▁The ▁same ▁issue ▁increased ▁the ▁total ▁number ▁of ▁sl ots ▁on ▁the ▁chart ▁to ▁ 2 5 ▁and ▁the ▁chart ▁number ing ▁began ▁with ▁# 1 . ▁ ▁Publications ▁Several ▁reference ▁books ▁on ▁the ▁history ▁of ▁the ▁Billboard ▁" B ub bling ▁Under " ▁charts ▁have ▁been ▁published ▁by ▁chart ▁stat istic ian ▁Jo el ▁Whit burn ' s ▁company ▁Record ▁Research . ▁The ▁latest ▁book ▁to ▁be ▁published ▁by ▁the ▁company ▁was ▁ 2 0 0 5 ' s ▁B ub bling ▁Under ▁the ▁Billboard ▁Hot ▁ 1 0 0 : ▁ 1 9 5 9 - 2 0 0 4 ▁( ). ▁Whit burn ' s ▁book ▁Top ▁Pop ▁Singles , ▁ 1 2 th ▁Edition ▁( ), ▁covers ▁all ▁Billboard ▁Hot ▁ 1 0 0 ▁and ▁B ub bling ▁Under ▁Hot ▁ 1 0 0 ▁Singles ▁chart ▁entries ▁from ▁ 1 9 5 5 ▁to ▁ 2 0 0 8 . ▁ ▁Chart ▁mil est ones ▁ ▁Songs ▁which ▁spent ▁the ▁most ▁weeks ▁on ▁the ▁B ub bling ▁Under ▁Hot ▁ 1 0 0 ▁Singles ▁chart ▁without ▁entering ▁the ▁Hot ▁ 1 0 0 : ▁ ▁Pear l ▁Jam ▁– ▁" A live "