Link to TV show a curse and gift for Snow Patrol

Irish band Snow Patrol's popularity soared after their emotional song Chasing Cars was used in the hit US TV show Grey's Anatomy.

Featuring on the season finale of the drama in 2006, the song opened up the band to millions of fans.

But guitarist and backing singer Nathan Connolly describes it as both "a curse and a gift".

There was a fear at the time that they would become known as "that band, from that show", Connolly told AAP in Sydney this week, where the band are promoting their new album A Hundred Million Suns.

Now, another one of their popular songs, Run, is in the spotlight, as it is being covered by former X-Factor winner, UK singer Leona Lewis - and Connolly says he has mixed feelings about that, too.

"I still haven't heard it," Connolly says of Lewis' take on their song.

"Nothing against her, but I don't know if I'm going to endorse it either. It is what it is."

Snow Patrol have been around since the mid-90s but it wasn't until they released their last album Eyes Open in late 2005 that they became a huge success.

Having their rise constantly linked to Grey's Anatomy is something they don't like to think about, says Connolly.

"We were asked about it a lot like we created the programme," Connolly said.

"There's plenty of other bands that have been on it.

"At the time we certainly never wanted to be that band from that TV show - and thankfully we're not - I guess there's a danger of that.

"You can argue would that song have been as successful without Grey's Anatomy, maybe not, but I think it was more to do with the song than the programme to be honest."

Snow Patrol did not get a say in whether they wanted their song used in the show. The show's producers did a deal with the record label, and that was that.

Looking ahead, the band have maintained that they've now got a lot more control over where their songs go.

Connolly says they have been approached by many TV shows - but knock most back.

"We've grown up a lot as individuals and as a band. We certainly keep an eye on things more - things like TV shows - we get requests now and we choose very wisely," he said.

"The more successful your band becomes there's a lot more responsibility and things you have to consider."

Snow Patrol formed in 1994 as an indie rock band. There are only two original band members left since then - Jonny Quinn and Gary Lightbody.

Connolly joined in 2002 while singer Paul Wilson and keyboardist Tom Simpson both joined in 2005.

Following the success of their last album, Connolly admits he felt a lot of pressure to do better with their latest offering.

A few of the band members even had music writing classes to fine-tune their skills.

"To say there's not any pressure is a lie," Connolly said.

"But it's pressure from ourselves really we always want to progress, move forward and we're very careful not to repeat ourselves.

"We're a lot more confident we're a lot better musicians than we were before."

The album is very different to their last album, not as pop and more intense.

Connolly says it takes a little time to get used to but describes it as their "best ever record".

"I think there's a lot of depth to it, so I don't think it's going to be as instant as previous records," he said.

"It demands a lot more of your attention and requires repeated listening much more than our previous records.

"It's almost like the previous two for me were almost kind of in training for this.

"We're very, very proud of it."

With a large following in Australia and the UK already, the band say they're next looking forward to really conquering the US and Europe.

"We're pretty ambitious, we don't run around shouting about it but we are. I think we want to grow as a worldwide act, as a band, or at least try," Connolly said.

Snow Patrol will be in Australia early next year to play at the V Festival, which is held in late March and early April in Sydney, The Gold Coast, Melbourne and Perth.