That was the daunting task facing Chris Evans, who fronted his very first Radio 2 breakfast programme since taking over from Terry Wogan on Monday.
Promising his listeners a "long but pleasant ride" but with "less turbulence" than his previous shows, the 43-year-old won over many fans with his debut as new host, despite apprehension from Terry's loyal fanbase.
He got the ball rolling with two Beatles' classics – All You Need Is Love and Got To Get You In My Life – and played an eclectic mix of music throughout the two-and-a-half hour slot, from Frank Sinatra and Glen Campbell through to Alicia Keys and Robbie Williams.
The morning also saw the return of newsreader Moira Stewart, back on the BBC after she was dropped in 2007, and she was warmly received by listeners.
Overall, reviews credited the DJ with a confident if restrained first show.
And some of Terry's fans have been outwardly positive about Chris, posting comments including: "He's not the same as Terry, but he's bright and cheerful which gives me a big smile."
The dad-of-two, who was congratulated by wife Natasha and their 11-month-old son Noah afterwards, had one other trick up his sleeve to help ease the Irish presenter's loyal listeners into the new format – a message from the man himself.
Chris' predecessor – currently on holiday in France – left him a voicemail recording on Sunday night which he played on air.
"I just wanted to wish you well for tomorrow morning and I know you'll do a brilliant job," the 71-year-old veteran presenter said.
"So have a marvellous time, really enjoy it, and I'll talk to you when I get back. But do brilliantly – I know you will."