EXPOSURE.

It Wasn't Me continues to plateau at the top of the chart, where it has now reigned for five consecutive weeks, with an audience ranging from just over 90m to its current "low" level of 88m, a remarkably small variance, especially as Shaggy's next single Angel is now beginning to cannibalise some of the support which previously went to It Wasn't Me. With the challenge of Hear'Say's Pure And Simple fading, it is left to Craig David to take up the challenge and runners-up position with Rendezvous. Although his smallest sales hit so far, peaking at number eight, Rendezvous is a great favourite of programmers and extends his run of solo top two airplay hits to four. Its 3-2 rise this week is impressive but it is still 573 plays and nearly 12m audience behind It Wasn't Me, and is unlikely to be its replacement at number one. That is more likely to be Nelly Furtado's I'm Like A Bird, which has strengthened 15-7-3 in the past fortnight, putting on nearly 300 plays and increasing its audience by 16m last week alone. Another week like that and it will be number one.

If Britney Spears is looking for reasons why she failed to register her eighth straight Top 10 CIN hit with her current single Don't Let Me Be The Last To Know, she need look no further than radio. Her previous seven singles were all safely into the top half of the Top 50 airplay chart when commercially released but Don't Let Me Be The Last To Know has had a more lukewarm reception, and currently languishes in 64th place, with an audience of less than 15m -- a consequence more of lack of support from big stations than anything else, as its play tally of 464 is more than many more highly-placed records. Spears' single, incidentally is one of four in a row in the chart with Don't as their initial word, being followed by Don't Stop Movin' (the new S Club 7 single), Don't Think I'm Not (Kandi) and Don't Tell Me (Madonna).

Radio Two's support has been vital to the Bee Gees' This Is Where I Came In. The station was on the single earlier than any other, and contributed over half of its plays for the first two weeks. For the past three weeks it has been Radio Two's most-played track, with a best-yet tally of 21 plays last week. It has been picked up by more stations, though its overall tally of 151 plays last week is the lowest of any record in the Top 50, and its total audience of 23.3m includes a hefty 19m (81.5%) contribution from Radio Two.

Although modest compared with its 30-place jump the previous week, Spice Girl Emma Bunton's What Took You So Long makes good progress, climbing 14-12 this week, with more than 300 extra plays. One of its strengths is that it is the only record to get more than a dozen plays from both Radios One and Two. The former aired the track 14 times last week, while Radio Two played it 20 times. Even better news for Bunton is that former colleague Geri Halliwell's carbon copy cover of the Weather Girls' It's Raining Men still has not cracked the Top 100.

Former Radio One favourites Ocean Colour Scene are conspicuously absent from the station's 50 most-played list with their latest hit, Up On The Downside, but have been more successful in winning support from Radio Two, where it was fourth most-played track with 19 spins last week. That is an important factor in the record's 82-41 jump on the airplay chart. Another long-time champion of OCS, Virgin, is still faithful, airing Downside 34 times last week.

AIRPLAY FACTSHEET

* Destiny's Child's purple patch continues. Survivor is their fourth consecutive single to reach the Top 10 of the airplay chart pre-release. It jumps 16-9 this week.