The E.N.D 's singles `` Boom Boom Pow '' and `` I Got ta Feeling '' were number one on charts for 26 consecutive weeks .
Boom Boom Pow '' and `` I Got ta Feeling '' led the Hot 100 back to back , putting the band at number 1 on the chart for a record breaking 26 consecutive weeks ( half a year ) .
The E.N.D.