Ahead in early midweek flashes, Iyaz's Replay finally surrendered pole position to Owl City's Fireflies, thus failing in its quest to become the first single on the Reprise label to spend three weeks at number one since label founder Frank Sinatra's Strangers In The Night in 1966. Replay's sales dipped 22.1% to 67,601, while Firflies' increased 21.3% to 71,865.
Glee Cast's Don't Stop Believin' rises 5-3 on sales of 51,621, a 31.8% increase week-on-week. Its cause was helped both by Channel 4's Sunday repeat screening of the series, which premiered on E4 the previous week, and fast growing airplay - it jumps 149-33 on the radio airplay chart as its audience more than quintuples to over 20m.
While The Ministry Of Sound's 64th Top 10 hit of the century continues to prosper, it is joined in the top tier by its 65th. On its third week in the chart, Riverside (Let's Go) by Sidney Samson feat. Wizard Sleeve drifts 3-5 (43,826 sales) while Example's Won't Go Quietly debuts at number six (39,288 sales).
Jay-Z and Alicia Keys' Empire State Of Mind drifts 20-21 (14,852 sales) on its 19th week in the Top 40. It is overtaken for the first time by Keys' solo 'answer' to the track, Empire State Of Mind (Part II) Broken Down, which climbs 23-15 (20,265 sales), helped by rapidly-growing airplay and Keys' performance of the track on Friday Night With Jonathan Ross (BBC1, January 22). Parent album The Element Of Freedom falls 7-8, despite increasing sales by 12.5% last week to 20,626.
In the albums market, Welsh rockers Lostprophets' fourth album The Betrayed was ahead on early sales flashes but eventually debuted at number three on sales of 31,873 copies. Following the number 16 peak of introductory single It's Not The End Of The World But I Can See It From Here and the number 32 peak of follow-up Where We Belong, the album fails to match its predecessor, Liberation Transmission, which earned the band its maiden number one in 2006, on sales of 55,425 copies.
Fifteen-year-old Canadian Justin Bieber has been in the UK promoting his debut album My World, which debuts strongly at number four on sales of 28,274 copies, following first single One Time's success. One Time has moved 14-11-12 since debuting a fortnight ago and sold 25,494 copies last week.
At the top of the chart. Florence & The Machine's Lungs had to operate at full capacity to fight off first Lostprophets, then Paolo Nutini. Lostprophets' challenge faded throughout the week but Nutini's grew. In a photo-finish, Lungs is first past the post for the second week in a row, on sales of 42,359, defeating Nutini's Sunny Side Up by just 211 sales.
Album sales extend their losing sequence to five weeks in a row, falling a further 4.11% to 1,892,907 - that is 8.80% above same week sales of 1,739,829 in 2009. Singles sales drift lower for the third time in a row, falling 3.64% week-on-week to 3,029,142. They are 17.47% above same week 2009 sales of 2,578,689.