She has been called “Africa’s greatest diva” but as DJ Nihal giving the award of Artist of the Year at this year’s Songlines Awards to Angélique Kidjo pointed out the word “diva” is a loaded one, and makes you think of Mariah Carey’s backstage tantrums. Not that there’s aren’t African divas – the imperious Oumou Sangare, for one, but Kidjo is more known her down-to-earth pragmatism and idealism.

Screens dominate the stage at London’s O2 Arena for The Big Christmas Reunion, which seems fitting given the show is an extension of ITV2’s reality series following 5ive, Atomic Kitten, Honeyz, Liberty X, B*Witched and 911 as they get back on the pop wagon a decade after they were all disbanded or dropped by their labels. The giant TV portals loom not just physically but structurally over the whole event, introducing each act with a reel of bland skits and intro VTs borrowed straight from the small screen.

Various Artists: German Measles Vol 1 – Flames of Love / German Measles Vol 2 – Sun Came Out at Seven

It’s now twenty five years since the release of the Waterboys’ most popular album, Fisherman’s Blues. To mark this auspicious occasion, Mike Scott has persuaded EMI to release a six-CD expanded version, Fisherman’s Box, which has 120-odd tracks of the type of music that, let’s not forget, did not receive universal acclaim in 1988 but has significantly grown in stature since then. He’s also called in the guys who recorded these folk, gospel, country and bluegrass flavoured tunes and has hit the road for a proper celebration of their “raggle-taggle gypsy” years.

The words “breathe, breathe, pray, breathe” were written in 10-inch letters at her feet. She wore sunglasses to help with her shyness. But if O’Connor was struggling with the pressure of being up on stage it didn’t show in her performance. Off-stage she may continue to suffer with her emotional well-being, but, on stage, she’s on the form of her life. Last night, her dense, swirling thoughts were projected through a combination of intensity, humour and vulnerability. It made for a superb evening.

I can’t say I ever tune into More4, so I confess that I don’t know whether its arts strand is any good, or even if it has one. But I suspect that Get Folked might have made a better three-parter on BBC Four, and not just for dedicated folk-heads. As it was, it tried to pack a lot into its 50 minutes (though allowing only 10 seconds for Mumford and Sons might be seen as a blessing by some) and it did so with a lot of seasoned hyperbole.

Neil Young: Live at the Cellar Door

It took two minutes for Jonathan Wilson to launch into the first of the evening’s extended guitar solos. “Love Strong” began like much of his two-hours-ten-minutes on stage. The song opened with him singing a verse and then flying off to guitar heaven. His playing is classic, evoking but not mimicking John Cipollina, Jerry Garcia, Stephen Stills and Neil Young. But it raises a conundrum: is Wilson about the songs or the craft? The former are fabulous, melodic and memorable. The latter fluid and phenomenal.

There's been a quiet but nevertheless palpable sense of anticipation surrounding psych-folk enigma Linda Perhacs' first-ever European tour. Comparatively low-key advance publicity certainly proved no impediment to a sold-out house for the recent opening date at Berlin's Kantine am Berghain, a somewhat drab and unprepossessing bunker in the shadow of the city's notorious techno temple.

Setting bankers, Baroness Thatcher, tax-dodging multinationals and Woody Guthrie to music? These days, it could only be a Billy Bragg gig. Reports of Bragg losing his political teeth, based on slightly guarded reviews of his latest album, Tooth & Nail, are on the evidence of last night greatly exaggerated. This is a songwriter who could no more detach his ideology than his right arm, and still play his guitar.